Table 1.

Offspring weights (g) on postnatal day (pnd) 0, 5, 10, 15 and 21 in control female (F; n = 20), Beta F (n = 18), control male (M; n = 16) and Beta M (n = 15)

Treatment	Sex	pnd 0	pnd 5	pnd 10	pnd 15	pnd 21
Control	F	101.6 ± 2.6	121.2 ± 3.9	160.8 ± 5.3	208.3 ± 6.4	256.8 ± 7.4
Control	M	96.6 ± 3.0	120.9 ± 4.4	165.0 ± 7.3	220.8 ± 9.8	289.1 ± 10.7†
Beta	F	92.2 ± 2.9*	116.1 ± 4.5	160.8 ± 5.0	206.8 ± 5.4	258.2 ± 7.0
Beta	M	106.0 ± 2.9*†	135.1 ± 5.1*†	185.5 ± 6.0*†	238.5 ± 5.6†	305.8 ± 9.3†

Data are expressed as means ± s.e.m.

^*Significant effect (P < 0.05) of prenatal betamethasone treatment within same sex and age group.

^†Significant (P < 0.05) sex difference within prenatal treatment group at same age.