IUGR (n = 64) | Controls (n = 127) | |
---|---|---|
Values are mean (SD) or percentages. | ||
IUGR, Intrauterine growth retarded; IIIn, social class III, non-manual; IIIm, social class III, manual. | ||
Matched factors | ||
Sex (male) | 46% | 44% |
Feeding (breast) | 48% | 45% |
Maternal smoking (yes) | 54% | 47% |
Social class | ||
I or II | 21% | 30% |
IIIn or IIIm | 52% | 46% |
IV or less | 29% | 24% |
Unmatched factors | ||
Maternal age (years) | 27.8 (5.0) | 28.6 (4.8) |
Gestation (weeks) | 38.7 (1.5) | 39.8 (1.5) |
Birth weight (g) | 2663 (453) | 3448 (506) |