TABLE 5.

NNNS Scores in Heavy, Some, and No Cocaine Exposure Groups

MeasureCocaine Exposure
HeavySomeNoneP
NMean ± SENMean ± SENMean ± SEUnadjustedAdjusted
Attention1015.42 ± 0.152095.36 ± 0.116325.29 ± 0.07.821.293
Arousal1114.37 ± 0.072264.28 ± 0.056844.43 ± 0.03.082.029
Regulation*1074.95 ± 0.102255.00 ± 0.076755.00 ± 0.04.798.024
Handling1010.51 ± 0.032150.56 ± 0.026580.56 ± 0.01.257.121
Quality of movement1104.40 ± 0.082264.41 ± 0.066834.46 ± 0.04.444.147
Excitability*1114.01 ± 0.242273.89 ± 0.186943.96 ± 0.11.717.044
Lethargy1113.47 ± 0.232273.49 ± 0.176943.39 ± 0.10.088.105
Nonoptimal reflexes1114.89 ± 0.232274.21 ± 0.176944.27 ± 0.10.076.039
Asymmetrical reflexes1111.04 ± 0.112270.93 ± 0.086940.95 ± 0.05.796.600
Hypertonicity1110.67 ± 0.092270.45 ± 0.076890.52 ± 0.04.042.062
Hypotonicity1110.26 ± 0.062270.16 ± 0.046890.20 ± 0.03.289.966
Stress/abstinence1110.18 ± 0.012270.17 ± 0.016940.17 ± 0.01.923.591
  • SE indicates standard error.

  • * Significant cocaine by birth weight interaction (reported in text).