Physical activity, return to work self-efficacy, and work status among employees undergoing chemotherapy for cancer - a prospective study with 12 months follow-up.

BACKGROUND: Numerous studies emphasize the positive effects of physical activity on health and well-being in cancer patients. The effects of physical activity on the working lives of cancer patients have received less attention. The aim of the present study was to examine the association between physical activity and work status in employees with cancer, and the mediating role of return to work self-efficacy (RTWSE) in this association. METHODS: Data from questionnaires (physical activity, RTWSE, performance status, sociodemographic), patient records, and Danish national registries (work status, education) were collected for 217 employees initiating chemotherapy for cancer. The associations of physical activity at baseline with work status at baseline and at twelve months follow-up, respectively, were estimated with logistic regression. The mediating role of RTWSE was investigated using the Sobel Goodmann test. RESULTS: Employees with moderate (> 30 min/day) or high (> 150 min/day) levels of current daily activity at baseline had significantly increased odds for working at baseline (OR = 2.83, 95%CI = 0.73-10.96 and OR = 6.13, 95%CI = 1.68-22.40, respectively) and at twelve months (OR = 3.90, 95%CI = 1.19-12.77 and OR = 3.43, 95%CI = 1.12-10.51, respectively), compared to sedentary employees. Likewise, employees, physically active in their leisure time (light or vigorous psychical activity) for 2-4 h/week or > 4 h/week of light activity at baseline, had increased odds for working at twelve months (OR range = 1.20 (95%CI = 0.40-3.61)-5.39(95%CI = 0.78-37.32)), compared to sedentary employees. RTWSE was not found to mediate the observed associations. CONCLUSIONS: Physical activity appears positively associated with work status in employees undergoing treatment for cancer in the twelve months period after initiating chemotherapy.

Validation of the Return To Work Self-Efficacy questionnaire in a population of employees undergoing treatment for cancer.

OBJECTIVE: Several Return To Work Self-Efficacy (RTWSE) questionnaires have been developed and found relevant to understanding the return to work (RTW) process of employees with various health problems, including employees with cancer. The aim of the present study was to examine the reliability and validity of the Danish 19-item RTWSE questionnaire (RTWSE-19DK ) in a sample of employees with cancer. METHODS: Employees undergoing treatment for cancer completed the RTWSE-19DK at baseline (n = 68) and at 1 week (n = 49). Additional questionnaires measured work ability, cancer-related self-efficacy and psychological distress. Internal consistency, test-retest reliability and construct validity were examined. RESULTS: The total and the three subscales of the RTWSE-19DK showed good internal consistencies with Cronbach's alphas between 0.90 and 0.97 and high test-retest reliability with Intraclass Correlation Coefficients between 0.84 and 0.90. Examining construct validity, the RTWSE-19DK showed medium and large correlations with cancer-related self-efficacy (r = 0.54), mental work ability (r = 0.51), and general work ability (r = 0.35), small correlations with physical work ability (r = 0.26) and anxiety (r = -0.10), and no correlations with depression (r = -0.08) and test date (r = 0.03). CONCLUSION: The RTWSE-19DK showed good reliability and adequate validity in employees undergoing cancer treatment. In clinical practice, the RTWSE-19 questionnaire may help practitioners identify areas of concern in the RTW process of cancer patients.

The Predictive Value of Return to Work Self-efficacy for Return to Work Among Employees with Cancer Undergoing Chemotherapy.

Purpose The aim of the present study was to examine the predictive value of Return to Work Self-efficacy (RTWSE) on Return to Work (RTW) among employees undergoing chemotherapy for cancer and to examine the relative contribution of RTWSE as predictor variable compared to personal, health-related, illness- and treatment-related and work-related factors. Methods A sample of 114 sickness absent employees with various cancers (age 18-62) included in the study on average 33 days after initiating chemotherapy were followed for 15 months. Data sources included patient questionnaires (RTWSE, depression, fatigue, performance status), sociodemographic factors (age, sex, job type, and perceived support from the workplace), patient records (type of cancer, treatment intention, number of treatment modalities, time since diagnosis and time since initiation of chemotherapy), and Danish national registries (RTW and education). Associations between RTWSE at baseline and weeks until full RTW during 15-months follow-up were analyzed using Cox proportional hazards regression. Results In the univariate analysis, high RTWSE was associated with shorter time to RTW (Hazard Ratio (HR) 1.84, 95% confidence interval (CI) 1.12-3.03). In the multivariate model, RTWSE failed to reach statistical significance (HR 1.12, 95% CI 0.62-2.02), whereas female sex (HR 0.30, 95% CI 0.15-0.60) and receiving palliative treatment (HR 0.15, 95% CI 0.05-0.44) were significantly associated with later RTW. Conclusion Compared to other factors of significance, RTWSE was not the strongest predictor of RTW when examined among employees undergoing chemotherapy for cancer. Before using the RTWSE questionnaire to identify employees with cancer at risk of late RTW, it is important to recognize that the predictive value of RTWSE may be different for employees on sick leave due to cancer than for other sickness absence populations.

Male breast cancer: a nation-wide population-based comparison with female breast cancer.

OBJECTIVE: Describe prognostic parameters of Danish male breast cancer patients (MBCP) diagnosed from 1980-2009. Determine all-cause mortality compared to the general male population and analyze survival/mortality compared with Danish female breast cancer patients (FBCP) in the same period. MATERIAL AND METHODS: The MBCP cohort was defined from three national registers. Data was extracted from medical journals. Data for FBCP is from the DBCG database. Overall survival (OS) was quantified by Kaplan-Meier estimates. Standardized mortality ratios (SMRs) were calculated based on mortality rate among patients relative to the mortality rate in the general population. The association between SMR and risk factors were analyzed in univariate and multivariable Poisson regression models. Separate models for each gender were used for the analyses. RESULTS: We found a marked difference in OS for the two genders. For the total population of MBCP, 5- and 10-year survivals were 55.1% and 31.7%, respectively. For FBCP, the corresponding figures were 76.8% and 59.3%. Median age at diagnosis for FBCP was 61 years and 70 years for MBCP. By applying SMR, the difference in mortality between genders equalized and showed pronounced age-dependency. For males <40 years, SMR was 9.43 and for females 19.56 compared to SMR for males 80 + years (0.95) and females 80 + years (0.89). During the period 1980-2009, the risk of dying gradually decreased for FBCP (p < .0001). The risk 1980-1984 was 35% higher than 2005-2009 (RR 1.35). Although the risk of dying for MBCP was also lowest in 2005-2009, there was no clear tendency (p = .1439). The risk was highest in 1990-1994 (RR =2.48). CONCLUSION: We found better OS for FBCP than for MBCP. But SMR showed similar mortality rate for the two genders, except for very young FBCP, who had higher SMR. Furthermore, significantly improved survival over time for FBCP was observed, with no clear tendency for MBCP.