TABLE 1

Descriptive Particulars of the 3 Groups

VariableLondon CommunityCopenhagen CommunityProximal CareANOVA or χ2Pa
No. (%) of boys59 (52)32 (43)27 (47)NS
No. (%) of first borns66 (58)58 (77)28 (61)NS
No. providing data at 10 d1117056
No. providing data at 5 wk816454
No. providing data at 12 wk756355
Mean (SD) infant ages, d
    10 d10.7 (1.7)10.7 (0.8)10.7 (1.9)NS
    5 wk36.3 (3.9)35.1 (3.5)35.7 (3.3)NS
    12 wk86.5 (4.8)84.5 (3.6)b87.9 (6.6)b<.01
Mother's mean (SD) age, y33.8 (4.7)29.9 (4.7)c32.3 (4.2)<.001
Partner's mean (SD) age, y35.8 (4.9)b31.9 (5.8)b34.0 (4.9)<.001
% mothers (partners) with college/university education52 (49)83 (81)93 (84)NS
% partners employedfull-time8773c85<.001
% mothers employed full-time before maternity leave576429c<.001
% parents living together9597100NS
  • NS indictes not significant.

  • a After ANOVA or χ2, posthoc Tukey or χ2 tests were used to identify significant differences (P < .05) between pairs of groups.

  • b Different from each other but not the third group figure.

  • c Different from both other group figures.