Table 2 Growth outcomes by maternal inflammatory response (MIR).
From: Histologic chorioamnionitis and fat mass accretion in infants born preterm
Total (n = 376) | MIR none (n = 271) | MIR stage 1 (n = 19) | MIR stage 2 (n = 58) | MIR stage 3 (n = 28) | p value | |
---|---|---|---|---|---|---|
Body composition at term-equivalent agea | ||||||
Fat mass, kg | 0.33 (0.24–0.44)b | 0.32 (0.23–0.42)b | 0.34 (0.23–0.46)b | 0.37 (0.29–0.45)b | 0.45 (0.34–0.66)b | <0.0001 |
Body fat percentage, % | 14.9 ± 4.8c | 14.4 ± 4.8c | 14.0 ± 5.5c | 16.2 ± 4.1c | 18.3 ± 4.4c | <0.0001 |
Fat mass z score | 0.78 ± 1.10c | 0.63 ± 1.10c | 0.84 ± 1.11c | 1.18 ± 0.93c | 1.34 ± 1.05c | 0.0001 |
Body fat percentage z score | 1.39 ± 1.17c | 1.25 ± 1.17c | 1.17 ± 1.27c | 1.77 ± 1.01c | 2.08 ± 1.00c | 0.0001 |
Mid-upper arm circumference, cm | 8.8 (8.0–9.3)b | 8.6 (8.0–9.1)b | 8.8 (8.3–9.0)b | 8.8 (8.0–9.3)b | 10.0 (9.0–10.3)b | 0.0353 |
Anthropometric growth ratesd | ||||||
Change in weight z score | −0.95 ± 0.59c | −0.90 ± 0.55c | −0.91 ± 0.59c | −1.02 ± 0.58c | −1.31 ± 0.87c | 0.0030 |
Change in length z score | −1.29 ± 0.93c | −1.23 ± 0.84c | −1.36 ± 1.10c | −1.44 ± 0.96c | −1.59 ± 1.38c | 0.1189 |
Change in head circumference z score | −0.85 (−1.39 to −0.24)b | −0.84 (−1.41 to −0.22)b | −0.65 (−1.01 to 0.17)b | −0.82 (−1.30 to −0.19)b | −1.14 (−1.80 to −0.73) | 0.0618 |
Weight gain, g/day | 20 (16–24)b | 20 (16–24)b | 23 (14–26)b | 21 (17–25)b | 19 (14–23)b | 0.4883 |
Weight gain (2-point), g/kg/day | 13 (10–14)b | 13 (10–14)b | 12 (10–14)b | 12 (11–14)b | 13 (12–14)b | 0.6988 |
Weight gain (Exponential), g/kg/day | 13 (11–15)b | 13 (10–15)b | 12 (10–14)b | 13 (12–15)b | 14 (12–15)b | 0.3648 |
Length gain, cm/week | 0.8 (0.6–1.0)b | 0.8 (0.6–1.0)b | 0.8 (0.3–1.0)b | 0.8 (0.6–1.1)b | 0.8 (0.6–1.0)b | 0.8672 |
Head Circumference gain, cm/week | 0.7 (0.5–0.8)b | 0.7 (0.5–0.8)b | 0.6 (0.6–0.9)b | 0.7 (0.6–0.8)b | 0.7 (0.7–0.8)b | 0.1434 |