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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Neurotoxicol Teratol. 2010 Jul 6;33(1):166–175. doi: 10.1016/j.ntt.2010.06.009

Table 5.

NNNS summary scores by methamphetamine exposure status and country

US (N=379) NZ (N=180) Exposure P= Country P= Interaction P=

Mean (SD) Exposed (N=183) Comparison (N=196) Exposed (N=85) Comparison (N=95) Unadj. Adj. Unadj. Adj. Unadj. Adj.
Attention 5.21 (1.08) 5.19 (1.16) 4.47 (1.15) 4.39 (.99) 0.607 0.248 0.001 0.001 0.767 0.636
Arousal 3.92 (0.65) 4.11 (0.62) 3.99 (0.73) 4.00 (0.61) 0.086 0.761 0.773 0.692 0.107 0.171
Regulation 5.46 (0.62) 5.47 (0.73) 5.02 (0.78) 5.11 (0.66) 0.433 0.125 0.001 0.001 0.578 0.990
Handling 0.30 (0.23) 0.32 (0.25) 0.37 (0.30) 0.29 (0.28) 0.205 0.070 0.406 0.441 0.041 0.117
Quality of movement 4.39 (0.57) 4.51 (0.59) 4.62 (0.74) 4.95 (0.46) 0.001 0.001 0.001 0.001 0.052 0.083
Excitability 2.92 (1.92) 3.25 (1.87) 3.85 (3.02) 3.36 (2.30) 0.690 0.113 0.009 0.021 0.037 0.098
Lethargy 4.56 (2.58) 4.16 (2.46) 4.66 (2.58) 4.33 (2.34) 0.107 0.525 0.552 0.979 0.883 0.604
Nonoptimal reflexes 0.33 (0.74) 0.37 (0.74) 1.11 (1.42) 0.67 (0.80) 0.014 0.066 0.001 0.001 0.004 0.012
Asymm. Reflexes 0.33 (0.56) 0.27 (0.58) 0.54 (1.04) 0.41 (0.91) 0.152 0.583 0.007 0.013 0.577 0.573
Hypertonicity 0.03 (0.16) 0.03 (0.19) 0.18 (0.38) 0.17 (0.38) 0.834 0.926 0.001 0.001 0.895 0.844
Hypotonicity 0.15 (0.47) 0.10 (0.32) 0.46 (0.73) 0.36 (0.56) 0.089 0.230 0.001 0.001 0.576 0.785
Stress/abstinence 0.094 (0.06) 0.091 (0.05) 0.056 (0.06) 0.036 0 (0.03) 0.012 0.036 0.001 0.001 0.063 0.125
 Physiological 0.016 (0.09) 0.003 (0.04) 0.036 (0.15) 0 0.001 0.002 0.252 0.284 0.135 0.446
 Autonomic 0.092 (0.13) 0.074 (0.11) 0.125 (0.13) 0.098 (0.12) 0.042 0.203 0.010 0.096 0.691 0.702
 CNS 0.138 (0.08) 0.133 (0.08) 0.062 (0.10) 0.026 (0.04) 0.004 0.026 0.001 0.001 0.031 0.074
 Skin 0.064 (0.11) 0.077 (0.14) 0.016 (0.08) 0.002 (0.02) 0.980 0.691 0.001 0.001 0.161 0.225
 Visual 0.092 (0.09) 0.089 (0.09) 0.046 (0.05) 0.038 (0.05) 0.488 0.295 0.001 0.001 0.726 0.737
 GI 0.042 (0.14) 0.051 (0.14) 0.024 (0.09) 0.021 (0.08) 0.780 0.540 0.036 0.023 0.603 0.664
 State 0.097 (0.13) 0.093 (0.12) 0.063 (0.11) 0.041 (0.08) 0.221 0.147 0.001 0.001 0.404 0.534