TABLE 1
FROM:
Prospective assessment of exclusive breastfeeding in relation to weight change in women
R Sichieri, A E Field, J Rich-Edwards and W C Willett
BACK TO ARTICLETable 1. Exclusion criteria for nulliparous and primiparous women in 1989
| Nulliparous | Primiparous | |
|---|---|---|
| N | N | |
| Women 24 to 40 y in 1989 | 33 082 | 20 261 |
| Exclusions | ||
| Diabetes or thyroid diseases in 1989 | 1220 | 807 |
| Pregnant in 1989 | 1709 | 1938 |
| Pregnant in 1992–1993 | 4741 | 2709 |
| Diabetes or thyroid diseases 1989–1993 | 694 | 458 |
| Inconsistency between parity/lactation | 367 | 547 |
| (women reported births and did not answer lactation questions or v.v.) | (2.6% of total births) | (3.1% of total births) |
| Had no child in 1991–1992 | 21 338 | 10 210 |
| More than one child in 1991–1992 | 1471 | 770 |
| Included in the analysis | 1538a | 2810a |
a After excluding four nulliparous and 12 primiparous with BMI missing at baseline.
