Table 3.
Through 5 years | Through 8 years | |||||||
---|---|---|---|---|---|---|---|---|
Total SRS T score | ||||||||
NNNS summary scale | n | Median (quartile range) | β (p value) | Confidence Interval | n | Median (quartile range) | β (p value) | Confidence interval |
Attention | 203 | 5.3 (2.1) | 213 | 5.3 (1.9) | ||||
Unadjusted | −0.55 (0.21) | −1.42, 0.32 | −0.55 (0.19) | −1.36, 0.27 | ||||
Adjusteda | −0.75 (0.06) | −1.54, 0.04 | −0.60 (0.12) | −1.34, 0.15 | ||||
Excitability | 214 | 2.0 (3.0) | 227 | 2.0 (3.0) | ||||
Unadjusted | 0.51 (0.08) | −0.06, 1.09 | 0.56 (0.05) | −0.01, 1.13 | ||||
Adjusted | 0.44 (0.11) | −0.11, 0.98 | 0.37 (0.18) | −0.18, 0.93 | ||||
Handling | 210 | 0.38 (0.63) | 222 | 0.44 (0.63) | ||||
Unadjusted | −0.22 (0.91) | −4.16, 3.74 | 0.07 (0.97) | −3.74, 3.89 | ||||
Adjusted | 0.72 (0.69) | −2.86, 4.32 | 0.57 (0.76) | −3.06, 4.20 | ||||
Lethargy | 214 | 4.0 (2.0) | 227 | 4.0 (0.63) | ||||
Unadjusted | 0.33 (0.34) | −0.35, 0.99 | 0.27 (0.40) | −0.37, 0.91 | ||||
Adjusted | 0.41 (0.18) | −0.20, 1.02 | 0.31 (0.29) | −0.26, 0.89 | ||||
Quality of movement | 214 | 4.8 (0.67) | 227 | 4.8 (0.77) | ||||
Unadjusted | −2.1 (0.04) | −4.09, −0.04 | −2.33 (0.02) | −4.35, −0.32 | ||||
Adjusted | −0.73 (0.45) | −2.62, 1.16 | −0.99 (0.30) | −2.86, 0.87 | ||||
Regulation | 211 | 5.6 (1.1) | 226 | 5.5 (1.1) | ||||
Unadjusted | −1.22 (0.09) | −2.65, 0.21 | −1.19 (0.12) | −2.68, 0.31 | ||||
Adjusted | −0.95 (0.18) | −2.33, 0.43 | −0.74 (0.31) | −2.16, 0.68 | ||||
Non-optimal reflexes | 214 | 4.0 (2.0) | 227 | 4.0 (2.0) | ||||
Unadjusted | −0.60 (0.09) | −1.28, 0.09 | −0.67 (0.05) | −1.35, 0.01 | ||||
Adjusted | −0.43 (0.20) | −1.08, 0.23 | −0.52 (0.13) | −1.18, 0.15 | ||||
Stress abstinence | 214 | 0.1 (0.06) | 227 | 0.12 (0.06) | ||||
Unadjusted | 12.2 (0.38) | −14.8, 39.15 | 23.2 (0.04) | 0.94, 45.50 | ||||
Adjusted | 8.9 (0.349) | −16.7, 34.6 | 13.2 (0.22) | −8.02, 34.5 | ||||
Arousal | 214 | 4.0 (1.0) | 227 | 4.0 (1.0) | ||||
Unadjusted | 0.53 (0.53) | −1.11, 2.16 | 0.93 (0.30) | −0.82, 2.68 | ||||
Adjusted | 0.47 (0.55) | −1.06, 2.01 | 0.64 (0.46) | −1.06, 2.33 |
Models adjusted for: maternal age at delivery (year), birth weight (grams), race category (black, white, other), parity (nulliparous, 1 prior birth, >1 prior birth), gestational age at NNNS exam (days), education (greater than high school education).
NNNS: Neonatal Intensive Care Unit Network Neurobehavioral Scale; SRS: Social Responsiveness Scale; n = number.