The total daily wear time of the accelerometer was calculated from the self-report diary data. Participants were asked to keep a diary in which they registered the time when the accelerometer was put on and taken off as well as potential breaks in which the accelerometer was taken off. To retain as many participants in the analyses as possible, missing accelerometer wear time values were imputed with the average wear time of that respective individual (if missing 1 or 2 days; N = 15) or the group average of each day (if missing for all days; N = 1). Sensitivity analyses did not reveal a marked effect of the imputation. In addition imputation is justified, as previous literature shows that wear time mainly affects sedentary time and not activity time [20, 21]. Participants also recorded daily in the diary the greatest life-space area they moved through (1) home, 2) outside home, 3) neighborhood, 4) town, 5) beyond; in accordance with the Life-Space Assessment [13]). Unfortunately, no information regarding trips, duration in each life-space area or mode of transportation used was available. The number of days moving beyond the neighborhood (that is, reaching the town or beyond town area) during the assessment week was calculated and categorized in tertiles; 0–3, 4–5, and 6–7 days.