Table 2.

Follow-up Characteristics of 1037 Age- and Sex-Matched Pairs Persistently Discordant for Leisure-time Physical Activity Identified From 3 Population-Based Cohorts

CharacteristicInactiveActiveP
Pieksämäki cohort
Matched pair members, n115115
Male sex, n (%)52 (45)52 (45)
Age, mean (minimum–maximum), y52 (41–62)52 (42–62)
Body mass index, mean (SD), kg/m227.4 (4.9)26.8 (4.4)0.57
Young Finns Study
Matched pair members, n300300
Male sex, n (%)146 (49)146 (49)
Age, mean (minimum–maximum), y38 (30–45)37 (30–45)
Body mass index, mean (SD), kg/m226.6 (4.8)25.1 (3.8)<0.001
Northern Finland Birth Cohort 1966
Matched pair members, n622622
Male sex, n (%)330 (53)330 (53)
Age, mean (minimum–maximum), y31 (31–31)31 (31–31)
Body mass index, mean (SD), kg/m225.0 (4.5)24.1 (3.4)0.001