29 The effects of exit from work on health across different socioeconomic groups Retirement Study (HRS) (8 studies) (17, 27, 29-31, 34, 38, 39, 41, 45), French national gas and electricity company cohort (GAZEL cohort) (5 studies) (40, 42-44, 48), Whitehall II study (2 studies) (33, 37) and Longitudinal Aging Study Amsterdam (LASA) (2 studies) (15, 35). All studies were prospective, and the follow-up period ranged from 4 to 18 years. Figure 1. Flow chart For the assessment of the type of exit route, two studies used register data (42, 43), the other studies relied on self-reports. Early/statutory retirement was measured in 19 studies (15, 17, 27, 28, 31-45, 47, 48) and unemployment and disability pension were both measured in three studies (29, 30, 33, 39, 42, 46). Various measures were used for the assessment of health, i.e. physical health included physical functioning (29, 30, 33, 41-43), chronic morbidity (28), cardiovascular 2
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