Table 2.

CHANGES IN WEIGHT AND HEIGHT Z SCORES BETWEEN TIME PERIODS OF STUDY

	EXTREMELY LOW BIRTH WEIGHT					NORMAL BIRTH WEIGHT
CHANGES IN Z SCORES	Birth to 40 weeksa	40 weeks to 8 monthsb	8 to 20 monthsc	20 months to 8 yearsd	8 to 14 yearse	8 to 14 years
BOYS, n=52						n=41
Z-WEIGHT
≥0.67	1 (2%)	21 (47%)	7(16%)	29 (60%)	15 (29%)*	5(12%)*
Per month	−0.390±0.339	0.030±0.224	0.015±0.065	0.015±0.065	0.006±0.009*	0.002±0.011*
Z-LENGTH/HEIGHT
≥ 0.67	6 (13%)	23 (56%)	15 (37%)	16 (33%)	18 (35%)**	2 (5%)**
Per month	−0.336±0.576	0.132±0.179	0.054±0.124	0.005±0.013	0.005±0.008**	0.000±0.008**
GIRLS, n=96						n=72
Z-WEIGHT
≥0.67	7 (7%)	44 (49%)	18 (20%)	55 (60%)	32 (33%)	21 (29%)
Per month	−0.333±0.356	0.076±0.129	0.005±0.069	0.013±0.015	0.004±0.011	0.004±0.012
Z-LENGTH/HEIGHT
≥0.67	8 (10%)	65 (83%)	36 (43%)	22 (25%)	8 (8%)	7 (10%)
Per month	−0.391±0.520	0.195±0.129	0.048±0.067	0.001±0.012	−0.004±0.011	−0.002±0.011

^*p<0.05

^**p<0.01

Numbers of missing children: Weight, n= ^a7, ^b9, ^c4, ^d1, ^e0. Length, n=^a12,^b18, ^c7, ^d1.