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Table 1 Characteristics of the 1982 Pelotas birth cohort in four time points

From: Change in body weight and body image in young adults: a longitudinal study

Variables Follow-up studies
1982 (N = 5914) 1984 (N = 4934)* 1986 (N = 4742)* 2004-5 (N = 3702)
n(%) n(%) n(%) n(%)
Gender   0.83 a 0.87 a 0.11 a
Male 3037 (51.4) 2524 (51.2) 2428 (51.2) 1963 (53.0)
Female 2876 (48.6) 2410 (48.8) 2314 (48.8) 1739 (47.0)
Maternal schooling (years)   0.63 a 0.68 a 0.73 a
0 – 4 1960 (33.2) 1563 (31.7) 1511 (31.9) 1197 (32.4)
5 – 8 2454 (41.5) 2095 (42.5) 2012 (42.5) 1578 (42.7)
9 – 11 654 (11.1) 559 (11.3) 537 (11.3) 407 (11.0)
≥12 839 (14.2) 712 (14.5) 677 (14.3) 516 (14.0)
Family income (minimum wages)   0.50 a 0.56 a 0.97 a
≤1 1288 (21.9) 987 (20.1) 939 (19.9) 716 (19.4)
1.01 – 3.0 2789 (47.4) 2388 (48.6) 2308 (48.9) 1837 (49.8)
3.1 – 6.0 1091 (18.5) 956 (19.5) 915 (19.4) 705 (19.1)
6.1 – 10.0 382 (6.5) 310 (6.3) 299 (6.3) 220 (5.0)
>10.0 335 (5.7) 274 (5.6) 262 (5.6) 209 (5.7)
   Mean (standard deviation)
Factorial asset index (1984)     0.30 b
   3.30 (1.23)   3.32 (1.21)
Body mass index z-score (4 years old)     0.90 b
    0.63 (1.01) 0.63 (0.98)
  1. *Participants with height and weight measured aChi-square test bT test.
  2. Pelotas, Rio Grande do Sul state, Brazil. 1982-2004-5.