MethodAssessment of productivity lossesSources to value loss of productivity
H&L-Q, Health and Labour Questionnaire.
Friction cost (FC)H&L-Q assessing work days lost in the past two weeks1. Gross national wage in Euro per hour provided by the Dutch Bureau of Statistics; wages were assessed by sex and 10 distinct categories of age
If the patient reported absence that exceeded two weeks, the annual sick leave was considered to be equal to the number of working days absent in the entire period indicated by the patient but within a period of 123 calendar days, being the friction period at the time of our study2. Added value of productivity for one friction period by sex and 10 categories of age, provided by the Institute of Medical Technology Assessment at the Erasmus University, Rotterdam, Netherlands
Human capital (HC)H&L-Q to assess working days on sick leave for those with a paid job1. Gross national wage in Euro per hour provided by Dutch Bureau of Statistics; wages were assessed by sex and 10 distinct categories of age
Sociodemographic questionnaire regarding working status and per cent of work disability2. Added value of productivity for one friction period by sex and 10 categories of age, provided by the Institute of Medical Technology Assessment at the Erasmus University, Rotterdam, Netherlands