Table 3.
Adjusted mean difference in body composition at 1 and 3 months of age comparing infants exposed (N = 56) and unexposed (N = 59) to ZIKV in pregnancy.
| 1 Month of Age | 3 Months of Age | ||||||
|---|---|---|---|---|---|---|---|
| ZIKV-exposed Infants (N = 56) | ZIKV-unexposed Infants* (N = 59) | p-value | ZIKV-exposed Infants (N = 56) | ZIKV-unexposed Infants* (N = 59) | p-value | ||
| Anthropometry | Abdominal circumference, cm | 38.2 (3.0) | 39.4 (3.0) | 0,12 | 25.4 (5.7) | 26.4 (5.8) | 0,38 |
| Triceps Skinfold, mm | 7.1 (2.3) | 7.6 (2.3) | 0,45 | 8.5 (1.8) | 7.9 (1.8) | 0,33 | |
| Mid-arm Circumference, cm | 12.4 (1.3) | 13.7 (1.3) | <0,01 | 13.8 (1.0) | 14.7 (1.0) | 0,01 | |
| Body Composition | Body fat, % | 20.5 (6.2) | 22.6 (6.2) | 0,19 | 25.1 (6.0) | 26.9 (5.8) | 0,61 |
| Body water, % | 58.3 (3.9) | 57.0 (3.9) | 0,16 | 52.6 (3.5) | 51.1 (3.6) | 0,22 | |
| Fat Mass, g | 1045 (428) | 1212 (427) | 0,14 | 1559 (475) | 1792 (483) | 0,16 | |
| Fat-free Mass, g | 3792 (614) | 4020 (613) | 0,16 | 4480 (413) | 4953 (419) | <0,01 | |
| Arm Muscle Circumference, cm | 10.1 (1.3) | 11.3 (1.3) | <0,01 | 11.1 (0.8) | 12.2 (0.8) | <0,01 | |
aMean difference (95% confidence interval) comparing ZIKV-exposed infants relative to unexposed infants as estimated from a linear regression with adjustment for maternal age, maternal pre-pregnancy BMI, and gestational age at birth.
*Presumptively unexposed infant.