Fear of Recurrence and Somatic Symptom Severity in Multiple Myeloma Patients: An Institution-Based Cross-Sectional Study
CC BY-NC-ND 4.0 · Indian J Med Paediatr Oncol 2022; 43(04): 355-360
DOI: DOI: 10.1055/s-0042-1755302
Abstract
Introduction Psychosocial concerns especially fear of cancer recurrence (FCR) is less commonly addressed among patients with multiple myeloma in India. Myeloma being incurable, an understanding of this problem is essential for adequately addressing them.
Objectives To study the prevalence of FCR among patients with multiple myeloma and determine the prevalence of somatic symptoms among patients with multiple myeloma.
Materials and Methods A cross-sectional study was performed at our institution among patients with multiple myeloma who had been on treatment for 1 year or more. The study was conducted between July 01 and July 31, 2015. At least 49 patients were required to be recruited into this study to meet its first objective. Patients were administered fear of cancer recurrence inventory (FCRI) questionnaire and Physical Health Questionnaire-15 (PHQ-15) questionnaire.
Results Sixty-four patients participated in the study. The median age was 60 years (34–80 years) and majority were females (N = 38, 60%). ISS staging information was available in 53 (83%) patients. Of 53, 24 (45%) were ISS stage 3, 12 (23%) were ISS stage 2 and remaining stage 1. The mean total FCRI score in the study population was 27.95 (SD: 24.5). Moderate to high levels of FCR were seen in 40% (N = 26). Using PHQ-15, 54 (84%) patients had mild or lesser somatic symptom burden. Disease status of patients at the time of this study had a significant statistical association with PHQ-15 scores (mean score in partial response (PR) or more group 6.02 versus 8.00 in less than PR group, p = 0.02).
Conclusions Overall, FCR scores and somatic symptom severity were low among our patients with multiple myeloma. However, a significant proportion had moderate to high levels of FCR. Further studies involving larger numbers in a prospective manner required to confirm our findings of fear of cancer recurrence among patients with multiple myeloma.
Ethics Approval and Consent to Participate
Approval was obtained from the Institutional Review Board before the start of the study.
Informed Consent
Informed consent was obtained from all individual participants included in the study.
Ethics
The procedures followed were in accordance with the ethical standards of the IEC and with the Helsinki Declaration of 1964, as revised in 2013. An approval was obtained from the Institutional Review Board (IRB) at Malabar Cancer Center, Thalassery before the start of the study. IRB number – 1616/IRB-SRC/13/MCC/04–07–15/4. Informed consent was obtained from all the patients prior to the study.
Publication History
Article published online:
01 September 2022
© 2022. Indian Society of Medical and Paediatric Oncology. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Thieme Medical and Scientific Publishers Pvt. Ltd.
A-12, 2nd Floor, Sector 2, Noida-201301 UP, India
Abstract
Introduction Psychosocial concerns especially fear of cancer recurrence (FCR) is less commonly addressed among patients with multiple myeloma in India. Myeloma being incurable, an understanding of this problem is essential for adequately addressing them.
Objectives To study the prevalence of FCR among patients with multiple myeloma and determine the prevalence of somatic symptoms among patients with multiple myeloma.
Materials and Methods A cross-sectional study was performed at our institution among patients with multiple myeloma who had been on treatment for 1 year or more. The study was conducted between July 01 and July 31, 2015. At least 49 patients were required to be recruited into this study to meet its first objective. Patients were administered fear of cancer recurrence inventory (FCRI) questionnaire and Physical Health Questionnaire-15 (PHQ-15) questionnaire.
Results Sixty-four patients participated in the study. The median age was 60 years (34–80 years) and majority were females (N = 38, 60%). ISS staging information was available in 53 (83%) patients. Of 53, 24 (45%) were ISS stage 3, 12 (23%) were ISS stage 2 and remaining stage 1. The mean total FCRI score in the study population was 27.95 (SD: 24.5). Moderate to high levels of FCR were seen in 40% (N = 26). Using PHQ-15, 54 (84%) patients had mild or lesser somatic symptom burden. Disease status of patients at the time of this study had a significant statistical association with PHQ-15 scores (mean score in partial response (PR) or more group 6.02 versus 8.00 in less than PR group, p = 0.02).
Conclusions Overall, FCR scores and somatic symptom severity were low among our patients with multiple myeloma. However, a significant proportion had moderate to high levels of FCR. Further studies involving larger numbers in a prospective manner required to confirm our findings of fear of cancer recurrence among patients with multiple myeloma.
Keywords
Introduction
Fear of cancer recurrence/relapse (FCR) is one of the most distressing problems among cancer survivors.[1] FCR is defined as the fear or worry that the cancer will return or progress in the same organ or in another part of the body.[2] [3] Higher FCR is associated with many problems such as higher physical symptom burden, higher emotional distress, and certain maladaptive behaviors such as alcohol use and lower physical activity.[4] Cancer patients with high FCR have higher unmet supportive care needs and in fact FCR has been one of the most important concerns among cancer patients and survivors.[5] [6] FCR has been well studied among cancer survivors who had solid tumors and certain hematological cancers.[7] [8] [9] [10] [11]
Multiple myeloma survival has improved over time due to advances in diagnosis, risk stratification, and treatment.[12] However, myeloma is still incurable with patients experiencing multiple relapses and eventually becoming treatment refractory.[13] Myeloma is associated with significant symptom burden due to the nature of the illness and prolonged treatment required.[14] The presence of physical symptoms may be considered as disease not getting controlled or as a sign of reappearance of disease.[15]
There are limited studies exploring the fear of recurrence/relapse among myeloma patients.[13] [16] [17] With improvement in survival of myeloma, patients are in a state of persistent confrontation with likelihood of progression. In the studies by Hulin et al and Kelly et al, the issue of FCR was studied in a qualitative manner.[13] [16] In the study by Xiaochun et al, it was observed that 56.4% of patients with myeloma had a high level of FCR using the Fear of Progression Questionnaire short form.[17] Persistent and high FCR are debilitating. Early recognition of FCR is essential as psychological interventions have shown to alleviate FCR-related symptoms.[18] Studies focusing on FCR in myeloma are lacking from India and hence we decided to undertake this study to assess the baseline prevalence of FCR among patients with multiple myeloma on treatment for 1 year or more and the prevalence of somatic symptoms among them. It is important to have a baseline assessment of the degree of FCR and somatic symptom burdens in our population. This will help us guide our intervention in the future to improve the patient well-being.
Materials and Methods
This cross-sectional study was conducted at the hematology outpatient department (OPD) at our center. All patients with multiple myeloma fulfilling the inclusion criteria mentioned below were recruited in to this study. The study was conducted between July 01 and July 31, 2015. Approval was obtained from the Institutional Review Board (IRB) before the start of the study. A single interviewer who was a qualified psychiatrist administered the fear of cancer recurrence inventory (FCRI) questionnaire and Patient Health Questionnaire-15 (PHQ-15) to all patients who satisfied inclusion criteria and came to OPD during the study period. The interview was conducted in the regional language, i.e., Malayalam. All patients were aware of the diagnosis. Patients were told about the prognosis by the treating doctor if they explicitly asked for such information. Responsible caregivers of patients were appraised about the prognosis. Socioeconomic status assessment was done using modified Kuppuswamy's scale.[19]
Inclusion Criteria
Patients with multiple myeloma on treatment for 1 year or more from the date of their diagnosis.
Patients who give informed consent to participate in the study.
Age 18 years and above.
Exclusion Criteria
Patients who were not willing to participate in the study or unwilling to provide informed consent.
Patients who were diagnosed with and on treatment for any psychiatric illness.
Fear of Cancer Recurrence Inventory
FCRI is a multidimensional questionnaire. Seven components of fear of cancer recurrence (FCR) along a continuum of severity are evaluated using this questionnaire. There are 42 items and key domains evaluated include triggers, severity, psychological distress, functioning impairments, insight, reassurance, and coping strategies. Each item is rated on a Likert scale ranging from 0 to 4. Score is obtained for each subscale and for the total scale by summing the items. A higher score indicates higher levels of FCR. Score ranges from 0 to 168.[2] [6] If FCR mean scores are below the mid-points of these scales, it indicates low-to-moderate levels of FCR.[6] For the purpose of this study, patients were classified as having low FCR if they had FCR scores below the mean score, moderate if observed scores were between mean and 84 (midpoint of the total FCR score), and high if they had observed scores above 84.
PHQ-15
PHQ-15 is a somatic symptom subscale that was derived from the full patient health questionnaire (PHQ). It deals with the assessment of severity of 15 somatic symptoms commonly reported in outpatient settings. PHQ-15 score is a continuous measure. However, using cut offs of 5, 10, and 15, the PHQ-15 score can be demarcated into four classes. These are minimal, mild, moderate, and high. Scoring is done by asking patients how often they are bothered due to each symptom in the past 7 days. If a patient is not at all bothered due to the symptoms, it will be scored as “0,” 1 if bothered a little; and 2 if bothered a lot. Range of PHQ-15 score is 0 to 30.[20]
Sample Size Calculation
Sample size was calculated using the formula of 4pq/d2 where p is the expected prevalence, q is 100-p, and d is the precision level. The prevalence of FCR was expected to be 67.[10] Assuming 20% as relative precision, sample size = 4 × 67 × (100–67)/13.4 × 13.4 = 49. Thus, at least 49 patients were required for this study.
Statistical Analysis
The data were tabulated electronically in Microsoft Excel and analyzed using the software IBM SPSS 20.0 version (IBM Corp. Released 2011. IBM SPSS Statistics for Windows, Version 20.0. Armonk, NY: IBM Corp). The demographic details of the participants are expressed in frequency and percentage. The associations between scores of FCR, PHQ, and other continuous demographic variables were examined by Pearson's correlation analysis if they were normally distributed, or Spearman's correlation if they were not. Independent samples t-test was used for comparison of means of FCR and PHQ with gender and response to treatment. For analysis in this study, response to treatment was divided into two groups, i.e., patients who had partial response or more and patients who had less than partial response (PR or more vs. less than PR). The response defined as one documented just before recruitment into this study. One-way analyses of variance (ANOVAs) were conducted to compare FCR and PHQ scores with socioeconomic class.
Results
A total of 64 patients participated in this study. The median age was 60 years (range: 34–80 years). More than half of patients were females (N = 38, 60%). The majority of participating patients were married (N = 53, 82%). Most of the study participants (N = 57, 89%) had education of primary school level or more. A significant number of participants were either unemployed (22, 34%) or were unskilled laborers (18, 28%). Forty-seven (73%) patients were from upper lower socioeconomic status. Other demographic details are mentioned in [Table 1]. Complete ISS staging information was available in 53 (83%). Of these 53 cases, 24 (45%) were ISS stage 3, 12 (23%) were ISS stage 2, and remaining stage 1. First-line treatment received by these patients is listed in [Table 1]. The majority received melphalan prednisolone thalidomide (MPT) (25, 39%) followed by lenalidomide dexamethasone (20, 31%). Three (5%) patients had undergone autologous stem cell transplant. After first-line treatment, responses observed were very good partial response (VGPR) in 44 (69%) patients, 16 (25%) had partial response (PR), and 4 (6%) had stable disease. At the time of this study, 15 (23%) had complete remission, 25 (39%) had VGPR, 11 (17%) had PR, 2 (3%) had stable disease, and 7 (11%) had progressive disease. Data were missing in 4 (6%). The mean duration from diagnosis to enrolment into this study was 28 months.
Parameter |
N (%) |
|
---|---|---|
Median age (in years) |
60 (range 34–80) |
|
Gender |
Male |
26 (40) |
Female |
38 (60) |
|
Marital status |
Married |
53 (80) |
Single |
11 (20) |
|
Educational status |
Illiterate |
7 (11) |
Primary school |
17 (27) |
|
Middle school |
26 (41) |
|
High school |
11 (17) |
|
Intermediate/diploma |
2 (3) |
|
Graduate |
1 (1) |
|
Professional degree |
0 (0) |
|
Occupational status |
Unemployed |
22 (34) |
Unskilled |
18 (28) |
|
Semiskilled |
8 (12) |
|
Skilled |
12 (19) |
|
Clerical/shop/farm |
1 (2) |
|
Semi-profession |
2 (3) |
|
Professional |
1 (2) |
|
Socioeconomic class |
Lower |
4 (6) |
Upper lower |
47 (73) |
|
Lower middle |
12 (19) |
|
Upper middle |
0 (0) |
|
Upper class |
1 (2) |
|
ISS stage* |
Stage 1 |
17 (32) |
Stage 2 |
12 (23) |
|
Stage 3 |
24 (45) |
|
First-line treatment |
MPT |
25 (39) |
Lenalidomide-dexamethasone |
20 (31) |
|
CyBorD |
10 (16) |
|
Thalidomide dexamethasone |
9 (14) |
|
Treatment response to first line |
VGPR or better |
44 (69) |
Partial response |
16 (25) |
|
Stable disease |
4 (6) |
Levels of somatic symptom severity |
Number (%) |
---|---|
Minimal (0–4) |
25 (39) |
Low (5–9) |
29 (45) |
Moderate (10–14) |
10 (16) |
High (15–30) |
0 (0) |
References
- Koch L, Jansen L, Brenner H, Arndt V. Fear of recurrence and disease progression in long-term (≥ 5 years) cancer survivors–a systematic review of quantitative studies. Psychooncology 2013; 22 (01) 1-11 DOI: 10.1002/pon.3022.
- Simard S, Savard J. Fear of Cancer Recurrence Inventory: development and initial validation of a multidimensional measure of fear of cancer recurrence. Support Care Cancer 2009; 17 (03) 241-251 DOI: 10.1007/s00520-008-0444-y.
- Vickberg SMJ. The Concerns About Recurrence Scale (CARS): a systematic measure of women's fears about the possibility of breast cancer recurrence. Ann Behav Med 2003; 25 (01) 16-24 DOI: 10.1207/S15324796ABM2501_03.
- Hall DL, Jimenez RB, Perez GK. et al. Fear of Cancer Recurrence: A Model Examination of Physical Symptoms, Emotional Distress, and Health Behavior Change. J Oncol Pract 2019; 15 (09) e787-e797 DOI: 10.1200/JOP.18.00787.
- Sarkar S, Sautier L, Schilling G, Bokemeyer C, Koch U, Mehnert A. Anxiety and fear of cancer recurrence and its association with supportive care needs and health-care service utilization in cancer patients. J Cancer Surviv 2015; 9 (04) 567-575 DOI: 10.1007/s11764-015-0434-2.
- Simard S, Thewes B, Humphris G. et al. Fear of cancer recurrence in adult cancer survivors: a systematic review of quantitative studies. J Cancer Surviv 2013; 7 (03) 300-322 DOI: 10.1007/s11764-013-0272-z.
- Fredette SL. Breast cancer survivors: concerns and coping. Cancer Nurs 1995; 18 (01) 35-46
- Lee-Jones C, Humphris G, Dixon R, Hatcher MB. Fear of cancer recurrence–a literature review and proposed cognitive formulation to explain exacerbation of recurrence fears. Psychooncology 1997; 6 (02) 95-105 DOI: 3.0.CO;2-B" style="color: rgb(1, 52, 118); outline-width: 0px; outline-color: transparent !important;">10.1002/(SICI)1099-1611(199706)6:2<95>3.0.CO;2-B.
- Walburg V, Rueter M, Lamy S. et al. Fear of cancer recurrence in non- and Hodgkin lymphoma survivors during their first three years of survivorship among French patients. Psychol Health Med 2019; 24 (07) 781-787 DOI: 10.1080/13548506.2019.1574354.
- Mehnert A, Koch U, Sundermann C, Dinkel A. Predictors of fear of recurrence in patients one year after cancer rehabilitation: a prospective study. Acta Oncol 2013; 52 (06) 1102-1109 DOI: 10.3109/0284186X.2013.765063.
- Black EK, White CA. Fear of recurrence, sense of coherence and posttraumatic stress disorder in haematological cancer survivors. Psychooncology 2005; 14 (06) 510-515 DOI: 10.1002/pon.894.
- Kumar SK, Dispenzieri A, Lacy MQ. et al. Continued improvement in survival in multiple myeloma: changes in early mortality and outcomes in older patients. Leukemia 2014; 28 (05) 1122-1128 DOI: 10.1038/leu.2013.313.
- Hulin C, Hansen T, Heron L. et al. Living with the burden of relapse in multiple myeloma from the patient and physician perspective. Leuk Res 2017; 59: 75-84 DOI: 10.1016/j.leukres.2017.05.019.
- Ramsenthaler C, Kane P, Gao W. et al. Prevalence of symptoms in patients with multiple myeloma: a systematic review and meta-analysis. Eur J Haematol 2016; 97 (05) 416-429 DOI: 10.1111/ejh.12790.
- Hall DL, Lennes IT, Pirl WF, Friedman ER, Park ER. Fear of recurrence or progression as a link between somatic symptoms and perceived stress among cancer survivors. Support Care Cancer 2017; 25 (05) 1401-1407 DOI: 10.1007/s00520-016-3533-3.
- Kelly M, Dowling M. Patients' lived experience of myeloma. Nurs Stand 2011; 25 (28) 38-44
- Hu X, Wang W, Wang Y, Liu K. Fear of cancer recurrence in patients with multiple myeloma: Prevalence and predictors based on a family model analysis. Psychooncology 2021; 30 (02) 176-184 DOI: 10.1002/pon.5546.
- Tauber NM, O'Toole MS, Dinkel A. et al. Effect of psychological intervention on fear of cancer recurrence: a systematic review and meta-analysis. J Clin Oncol 2019; 37 (31) 2899-2915 DOI: 10.1200/JCO.19.00572.
- Wani RT. Socioeconomic status scales-modified Kuppuswamy and Udai Pareekh's scale updated for 2019. J Family Med Prim Care 2019; 8 (06) 1846-1849 DOI: 10.4103/jfmpc.jfmpc_288_19.
- Kroenke K, Spitzer RL, Williams JBW. The PHQ-15: validity of a new measure for evaluating the severity of somatic symptoms. Psychosom Med 2002; 64 (02) 258-266
- Ghoshal A, Salins N, Damani A. et al. To tell or not to tell: exploring the preferences and attitudes of patients and family caregivers on disclosure of a cancer-related diagnosis and prognosis. J Glob Oncol 2019; 5: 1-12 DOI: 10.1200/JGO.19.00132.
- Han PKJ, Gutheil C, Hutchinson RN, LaChance JA. Cause or effect? The role of prognostic uncertainty in the fear of cancer recurrence. Front Psychol 2021; 11: 626038 DOI: 10.3389/fpsyg.2020.626038.
- Raphael D, Frey R, Gott M. The nature and timing of distress among post-treatment haematological cancer survivors. Eur J Cancer Care (Engl) 2019; 28 (01) e12951 DOI: 10.1111/ecc.12951.
- Aderhold C, Morawa E, Paslakis G, Erim Y. Protective factors of depressive symptoms in adult cancer patients: the role of sense of coherence and posttraumatic growth in different time spans since diagnosis. J Psychosoc Oncol 2019; 37 (05) 616-635 DOI: 10.1080/07347332.2019.1631931.
- Mols F, Oerlemans S, Vos AH. et al. Health-related quality of life and disease-specific complaints among multiple myeloma patients up to 10 yr after diagnosis: results from a population-based study using the PROFILES registry. Eur J Haematol 2012; 89 (04) 311-319 DOI: 10.1111/j.1600-0609.2012.01831.x.
- Ramsenthaler C, Osborne TR, Gao W. et al. The impact of disease-related symptoms and palliative care concerns on health-related quality of life in multiple myeloma: a multi-centre study. BMC Cancer 2016; 16: 427 DOI: 10.1186/s12885-016-2410-2.
- Mian HS, Pond GR, Wildes TM, Sivapathasundaram B, Sussman J, Seow H. Symptom burden in transplant ineligible patients with newly diagnosed multiple myeloma: a population-based cohort study. Haematologica 2021; 106 (07) 1991-1994 DOI: 10.3324/haematol.2020.267757.
- Cancer Australia. Recommendations for the identification and management of fear of cancer recurrence in adult cancer survivors. 2014: 1-42
Address for correspondence
Vineetha Raghavan, MDDepartment of Clinical Hematology and Medical Oncology, Malabar Cancer CentreThalassery 670103, Kannur, KeralaIndiaEmail: vini.kannur@gmail.comPublication History
Article published online:
01 September 2022© 2022. Indian Society of Medical and Paediatric Oncology. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Thieme Medical and Scientific Publishers Pvt. Ltd.
A-12, 2nd Floor, Sector 2, Noida-201301 UP, India
References
- Koch L, Jansen L, Brenner H, Arndt V. Fear of recurrence and disease progression in long-term (≥ 5 years) cancer survivors–a systematic review of quantitative studies. Psychooncology 2013; 22 (01) 1-11 DOI: 10.1002/pon.3022.
- Simard S, Savard J. Fear of Cancer Recurrence Inventory: development and initial validation of a multidimensional measure of fear of cancer recurrence. Support Care Cancer 2009; 17 (03) 241-251 DOI: 10.1007/s00520-008-0444-y.
- Vickberg SMJ. The Concerns About Recurrence Scale (CARS): a systematic measure of women's fears about the possibility of breast cancer recurrence. Ann Behav Med 2003; 25 (01) 16-24 DOI: 10.1207/S15324796ABM2501_03.
- Hall DL, Jimenez RB, Perez GK. et al. Fear of Cancer Recurrence: A Model Examination of Physical Symptoms, Emotional Distress, and Health Behavior Change. J Oncol Pract 2019; 15 (09) e787-e797 DOI: 10.1200/JOP.18.00787.
- Sarkar S, Sautier L, Schilling G, Bokemeyer C, Koch U, Mehnert A. Anxiety and fear of cancer recurrence and its association with supportive care needs and health-care service utilization in cancer patients. J Cancer Surviv 2015; 9 (04) 567-575 DOI: 10.1007/s11764-015-0434-2.
- Simard S, Thewes B, Humphris G. et al. Fear of cancer recurrence in adult cancer survivors: a systematic review of quantitative studies. J Cancer Surviv 2013; 7 (03) 300-322 DOI: 10.1007/s11764-013-0272-z.
- Fredette SL. Breast cancer survivors: concerns and coping. Cancer Nurs 1995; 18 (01) 35-46
- Lee-Jones C, Humphris G, Dixon R, Hatcher MB. Fear of cancer recurrence–a literature review and proposed cognitive formulation to explain exacerbation of recurrence fears. Psychooncology 1997; 6 (02) 95-105 DOI: 3.0.CO;2-B" style="color: rgb(1, 52, 118); outline-width: 0px; outline-color: transparent !important;">10.1002/(SICI)1099-1611(199706)6:2<95>3.0.CO;2-B.
- Walburg V, Rueter M, Lamy S. et al. Fear of cancer recurrence in non- and Hodgkin lymphoma survivors during their first three years of survivorship among French patients. Psychol Health Med 2019; 24 (07) 781-787 DOI: 10.1080/13548506.2019.1574354.
- Mehnert A, Koch U, Sundermann C, Dinkel A. Predictors of fear of recurrence in patients one year after cancer rehabilitation: a prospective study. Acta Oncol 2013; 52 (06) 1102-1109 DOI: 10.3109/0284186X.2013.765063.
- Black EK, White CA. Fear of recurrence, sense of coherence and posttraumatic stress disorder in haematological cancer survivors. Psychooncology 2005; 14 (06) 510-515 DOI: 10.1002/pon.894.
- Kumar SK, Dispenzieri A, Lacy MQ. et al. Continued improvement in survival in multiple myeloma: changes in early mortality and outcomes in older patients. Leukemia 2014; 28 (05) 1122-1128 DOI: 10.1038/leu.2013.313.
- Hulin C, Hansen T, Heron L. et al. Living with the burden of relapse in multiple myeloma from the patient and physician perspective. Leuk Res 2017; 59: 75-84 DOI: 10.1016/j.leukres.2017.05.019.
- Ramsenthaler C, Kane P, Gao W. et al. Prevalence of symptoms in patients with multiple myeloma: a systematic review and meta-analysis. Eur J Haematol 2016; 97 (05) 416-429 DOI: 10.1111/ejh.12790.
- Hall DL, Lennes IT, Pirl WF, Friedman ER, Park ER. Fear of recurrence or progression as a link between somatic symptoms and perceived stress among cancer survivors. Support Care Cancer 2017; 25 (05) 1401-1407 DOI: 10.1007/s00520-016-3533-3.
- Kelly M, Dowling M. Patients' lived experience of myeloma. Nurs Stand 2011; 25 (28) 38-44
- Hu X, Wang W, Wang Y, Liu K. Fear of cancer recurrence in patients with multiple myeloma: Prevalence and predictors based on a family model analysis. Psychooncology 2021; 30 (02) 176-184 DOI: 10.1002/pon.5546.
- Tauber NM, O'Toole MS, Dinkel A. et al. Effect of psychological intervention on fear of cancer recurrence: a systematic review and meta-analysis. J Clin Oncol 2019; 37 (31) 2899-2915 DOI: 10.1200/JCO.19.00572.
- Wani RT. Socioeconomic status scales-modified Kuppuswamy and Udai Pareekh's scale updated for 2019. J Family Med Prim Care 2019; 8 (06) 1846-1849 DOI: 10.4103/jfmpc.jfmpc_288_19.
- Kroenke K, Spitzer RL, Williams JBW. The PHQ-15: validity of a new measure for evaluating the severity of somatic symptoms. Psychosom Med 2002; 64 (02) 258-266
- Ghoshal A, Salins N, Damani A. et al. To tell or not to tell: exploring the preferences and attitudes of patients and family caregivers on disclosure of a cancer-related diagnosis and prognosis. J Glob Oncol 2019; 5: 1-12 DOI: 10.1200/JGO.19.00132.
- Han PKJ, Gutheil C, Hutchinson RN, LaChance JA. Cause or effect? The role of prognostic uncertainty in the fear of cancer recurrence. Front Psychol 2021; 11: 626038 DOI: 10.3389/fpsyg.2020.626038.
- Raphael D, Frey R, Gott M. The nature and timing of distress among post-treatment haematological cancer survivors. Eur J Cancer Care (Engl) 2019; 28 (01) e12951 DOI: 10.1111/ecc.12951.
- Aderhold C, Morawa E, Paslakis G, Erim Y. Protective factors of depressive symptoms in adult cancer patients: the role of sense of coherence and posttraumatic growth in different time spans since diagnosis. J Psychosoc Oncol 2019; 37 (05) 616-635 DOI: 10.1080/07347332.2019.1631931.
- Mols F, Oerlemans S, Vos AH. et al. Health-related quality of life and disease-specific complaints among multiple myeloma patients up to 10 yr after diagnosis: results from a population-based study using the PROFILES registry. Eur J Haematol 2012; 89 (04) 311-319 DOI: 10.1111/j.1600-0609.2012.01831.x.
- Ramsenthaler C, Osborne TR, Gao W. et al. The impact of disease-related symptoms and palliative care concerns on health-related quality of life in multiple myeloma: a multi-centre study. BMC Cancer 2016; 16: 427 DOI: 10.1186/s12885-016-2410-2.
- Mian HS, Pond GR, Wildes TM, Sivapathasundaram B, Sussman J, Seow H. Symptom burden in transplant ineligible patients with newly diagnosed multiple myeloma: a population-based cohort study. Haematologica 2021; 106 (07) 1991-1994 DOI: 10.3324/haematol.2020.267757.
- Cancer Australia. Recommendations for the identification and management of fear of cancer recurrence in adult cancer survivors. 2014: 1-42