“…49 All these regression models were adjusted for sociodemographic factors. These included age, [51][52][53]56,58,61,65,71,76,77 employment status, 53,56,76,77 education, 51,53,76,77 race, 52,53,71 sex, 71,77 (loss of) income, 65,71 and marital status. 51,76 Furthermore, in several studies, the regression models were controlled for clinical variables, such as comorbidities, 51,61 cancer type, 71,76 cancer stage, 53,71 and cancer recurrence.…”