The two interventions had similar demographic and physical activity characteristics except that home-based participants were younger ( p < 0.01 ) , more likely to be employed full time ( p 0.001 ) and reported less moderate-to-vigorous physical activity in the physical activity diaries compared to group exercise participants ( HB 29 21 min d ( -1 ) vs. G 57 35 min d ( -1 ) , p 0.001 ) .