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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.