Post-hoc subgroup analysis: “initially inactive” subgroup
At baseline, 16/59 (27%) of the verbal advice participants and 17/56 (30%) of the PPIL participants had step counts lower than 35,000/week. Among these initially inactive people in the PPIL group, a slightly increase of 739 steps/week was observed compared to the initially inactive verbal subgroup (p-0.004) for a 4-weeks unit of time. Interestingly, the step count remained similar between both initially active subgroups (Table Effect of physical activity prescription among initially inactive patients between the prescription and verbal advice group