Table 1 Description of the sample included in the analyses. The 1982 Pelotas (Brazil) Birth Cohort.

From: Associations of physical activity and sedentary time with body composition in Brazilian young adults

Variable N %
Gender
Male 1,590 49.6
Female 1,616 50.4
Family income at birth (minimum wages)
≤1 626 19,6
1.1–3 1,607 50,4
3.1–6 618 19,4
6.1–10 178 5,6
>10 161 5,0
Maternal schooling at birth (years)
0–4 1,050 32.8
5–8 1,382 43.2
9–11 345 10.8
≥12 424 13.2
Skin colour
White 2,398 74.8
Black 516 16.1
Brown 181 5.6
Yellow 60 1.9
Indigenous 51 1.6
Low birth weight 216 6.7
Socioeconomic status at 23 years
A (richest) 181 7.3
B 645 26.1
C 1,016 41.1
D 574 23.2
E (poorest) 58 2.3
Schooling at 23 years
0–4 213 6.6
5–8 880 27.5
9–11 1,616 50.4
≥12 497 15.5
Smoking at 23 years 780 24.3
Daily energy intake at 23 years (kcal) [mean-SD] 3726.8 2050
Changes in physical activity from 23 to 30 years – self-reported
Inactive–Inactive 1,666 52.0
Inactive–Active 427 13.3
Active–Inactive 610 19.0
Active–Active 503 15.7
MVPA at 30 years – accelerometer (min/day)
1st tertile (0–8.4) 908 33.5
2nd tertile (8.5–26.8) 905 33.4
3rd tertile (26.9–379.6) 899 33.1
SED at 30 years – accelerometer (min/day)
1st tertile (113.9–648.0) 915 33.3
2nd tertile (648.1–718.9) 920 33.4
3rd tertile (719.0–952.1) 915 33.3
  1. MVPA: Moderate-to-vigorous physical activity; SED: sedentary time.