Associations between gestational anthropometry, maternal HIV, and fetal and early infancy growth in a prospective rural/semi-rural Tanzanian cohort, 2012-13

Table 2 Unadjusted linear regression of infant birth outcomes with maternal HIV status and nutritional status at enrollment

Main predictor	Gestational age at birth, wk (n = 100)			Birth weight, g (n = 88)			Birth length, cm (n = 76)			Birth MUAC, cm (n = 76)			Birth head circumference, cm (n = 76)
	β	P	95 % CI	β	P	95 % CI	β	P	95 % CI	β	P	95 % CI	β	P	95 % CI
MUAC, cm	0.21	0.09	-0.04, 0.46	26.11	0.13	-8.10, 60.32	0.18	0.03	0.02, 0.35	0.06	0.16	-0.02, 0.15	0.05	0.45	-0.09, 0.19
TSF, mm	0.08	0.23	-0.05, 0.20	9.30	8.56	-7.71, 26.32	0.09	0.04	0.01, 0.17	0.03	0.13	-0.01, 0.08	0.04	0.25	-0.03, 0.11
Weight, kg	0.02	0.70	-0.07, 0.10	11.69	0.04	0.33, 23.05	0.06	0.03	0.00, 0.11	0.03	0.05	0.00, 0.06	0.01	0.59	-0.03, 0.06
Height, cm	-0.03	0.61	-0.15, 0.09	8.80	0.31	-8.26, 25.85	0.03	0.46	-0.05, 0.11	0.01	0.50	-0.03, 0.06	-0.01	0.79	-0.08, 0.06
BMI, kg/m²	0.10	0.13	-0.15, 0.35	29.07	0.10	-5.60, 63.73	0.18	0.03	0.01, 0.35	0.09	0.05	-0.00, 0.18	0.05	0.46	-0.09, 0.19
HIV-seropositivity	-0.77	0.27	-2.16, 0.62	-234.53	0.02	-424.07, -44.99	-1.04	0.03	-1.95, -0.13	-0.25	0.70	-1.52, 1.03	-0.51	0.18	-1.28, 0.25
	Mean ± SD		P	Mean ± SD		P	Mean ± SD		P	Mean ± SD		P	Mean ± SD		P
MUAC tertile^a (MUAC range)
Tertile 1 (20.7-25.5 cm)	37.6 ± 0.5		0.198	3064 ± 77		0.124	46.1 ± 0.4^a		0.036	10.5 ± 0.2		0.208	34.0 ± 0.3		0.056
Tertile 2 (25.7-27.8 cm)	37.9 ± 0.6			3209 ± 90			46.4 ± 0.4^a,b			10.6 ± 0.2			35.1 ± 0.4
Tertile 3 (28.0-33.5 cm)	39.0 ± 0.6			3290 ± 79			47.4 ± 0.4^b			11.0 ± 0.2			34.7 ± 0.3

Abbreviations: HIV human immunodeficiency virus, MUAC mid-upper arm circumference, HC head circumference, BMI body mass index, TSF triceps skinfold thickness
^aData are predicted means and standard deviations: for significant results, post hoc comparisons were made. Groups with different subscript letters are significantly different (P < 0.05)

ISSN: 1471-2393