Table 7.

Percentage of boys among term babies according to head circumference and ponderal index. Number of babies in parentheses

Head circumference (cm)
Ponderal index (kg/m3)<34<35<36≥36All
≤2537 (405)51 (355)60 (232)69 (118)50 (1110)
−2733 (461)45 (559)55 (524)70 (307)49 (1851)
−2927 (218)43 (479)54 (598)69 (496)52 (1791)
>2930 (59)32 (198)51 (421)65 (520)53 (1198)
All33 (1143)44 (1591)55 (1775)68 (1441)51 (5950)