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. Author manuscript; available in PMC: 2011 Jan 25.
Published in final edited form as: J Pediatr. 2008 Nov 5;154(1):10–16. doi: 10.1016/j.jpeds.2008.07.048

Table 3.

NNNS Summary Scores by Maternal Smoking Exposure: Continuous Scales

NNNS Subscale Maternal Smoking Group
Between-Group Differences
Exposed Unexposed Unadjusted Adjusted



Mean (SD) Mean (SD) Mean (SE) p Mean (SE) p
Attention 5.31 (1.62) 5.56 (1.44) −0.25 (0.42) 0.554 −0.07 (0.48) 0.879
Arousal 4.24 (0.78) 3.85 (.93) 0.39 (0.23) 0.091 0.36 (0.28) 0.217
Self-Regulation 5.60 (0.71) 5.99 (.74) −0.39 (0.20) 0.049 −0.28 (0.22) 0.221
Handling 0.44 (0.23) 0.31 (0.23) 0.13 (0.06) 0.038 0.18 (0.07) 0.017
Quality of Movement 4.88 (0.71) 5.05 (0.59) −0.17 (0.18) 0.354 −0.15 (0.20) 0.462
Excitability 3.43 (2.49) 2.18 (2.34) 1.25 (0.66) 0.058 1.36 (0.80) 0.098
Lethargy 4.04 (1.86) 4.21 (2.11) −0.17 (0.54) 0.738 −0.29 (0.60) 0.629
Asymmetric Reflexes 1.36 (1.25) 1.07 (0.98) 0.29 (0.31) 0.346 0.12 (0.36) 0.732
Non-Optimal Reflexes 3.79 (2.23) 3.79 (2.11) 0.00 (0.59) 1.000 −0.69 (0.67) 0.314
Habituation 6.02 (2.13) 6.74 (1.10) −0.72 (0.65) 0.253 −1.30 (0.85) 0.139
Total Stress/ Abstinence 0.08 (0.05) 0.07 (0.05) 0.01 (0.01) 0.616 0.01 (0.02) 0.455