Table 1 Description of mothers (N = 4189) recruited to the 2004 Pelotas Birth Cohort Study, Pelotas, Brazil, 2004.

Ethnicity (N = 4141)

   white

   black

   mixed

Age (years) (N = 4187)

   0–19

   20–29

   30–39

   40+

Family income in minimum wages (N = 4177)

   < 1

   1 – 2.9

   3 – 6.9

   6 – 9.9

   10+

Reference wealth quintiles – IEN* (N = 4186)

   1

   2

   3

   4

   5

Coverage by private health plan (N = 3945)

   No

   Yes