Table 1 Characteristics of the Northern Finland Birth Cohort (1966) study population at ages 31 and 46 years

Temperament traits at age 31, n (%)

1367 (44)

1739 (56)

3106

Persistence, mean (SD)

4.6 (1.8)

4.1 (1.7)

4.3 (1.7)

< .001 ^a

Novelty seeking, mean (SD)

19.5 (5.9)

20.7 (6.0)

20.7 (6.0)

< .001 ^a

Reward Dependency, mean (SD)

13.2 (3.7)

16.1(3.4)

14.8 (3.9)

< .001 ^a

Harm avoidance, mean (SD)

12.8 (6.0)

15.1 (5.9)

14.0 (6.1)

< .001 ^a

MVPA at age 31, n (%)

1359 (44)

1725 (56)

3084

 min/week, md (IQR)

45 (10−150)

45 (15−113)

45 (10−113)

.034 ^b

min/week, mean (SD)

98.3 (118.4)

82.0 (99.1)

89.2 (108.3)

<.001 ^a

MVPA at age 46, n (%)

1303 (44)

1682(56)

2985

 min/week, md (IQR)

75 (15−188)

75 (23−188)

75 (15−188)

.032 ^b

min/week, mean (SD)

107.6 (120.3)

112.6 (119.2)

110.4 (119.7)

.251 ^a