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. Author manuscript; available in PMC: 2019 Jun 10.
Published in final edited form as: Drug Alcohol Depend. 2018 Apr 10;189:116–124. doi: 10.1016/j.drugalcdep.2018.02.027
Wave 1 Wave 2

No Problems Class Males Females p Males Females p
Major Role Failure 0.000 0.000 1.000 0.000 0.000 1.000
Physically Hazardous 0.047 0.024 0.000 0.026 0.007 0.000
Legal Problems 0.000 0.000 0.614 0.000 0.000 0.363
Social/Interpersonal Problems 0.001 0.000 0.542 0.000 0.000 1.000
Tolerance 0.012 0.006 0.001 0.016 0.010 0.013
Unsuccessful Efforts to Cut Down 0.074 0.029 0.000 0.028 0.016 0.001
Larger Amount/Longer Periods 0.015 0.008 0.006 0.010 0.007 0.202
Withdrawal 0.007 0.007 0.711 0.022 0.020 1.000
Great Deal of Time Spent 0.000 0.000 0.198 0.000 0.000 1.000
Giving Up/Reducing Activities 0.000 0.000 0.212 0.000 0.000 1.000
Physical/Psychological Problem 0.002 0.000 0.153 0.003 0.001 0.069

Moderate Class Males Females p Males Females p

Major Role Failure 0.013 0.007 0.382 0.005 0.008 1.000
Physically Hazardous 0.553 0.435 0.000 0.409 0.261 0.000
Legal Problems 0.040 0.017 0.013 0.017 0.009 0.115
Social/Interpersonal Problems 0.081 0.035 0.000 0.053 0.015 0.001
Tolerance 0.339 0.252 0.002 0.261 0.191 0.001
Unsuccessful Efforts to Cut Down 0.399 0.347 0.087 0.375 0.342 0.250
Larger Amount/Longer Periods 0.528 0.521 0.867 0.558 0.546 0.706
Withdrawal 0.378 0.451 0.026 0.457 0.541 0.002
Great Deal of Time Spent 0.081 0.055 0.111 0.065 0.053 0.322
Giving Up/Reducing Activities 0.010 0.001 0.024 0.008 0.003 0.164
Physical/Psychological Problem 0.143 0.135 0.728 0.142 0.115 0.229

Severe Class Males Females p Males Females p

Major Role Failure 0.314 0.455 0.038 0.347 0.266 0.191
Physically Hazardous 0.913 0.779 0.004 0.732 0.639 0.107
Legal Problems 0.176 0.130 0.270 0.171 0.088 0.020
Social/Interpersonal Problems 0.614 0.506 0.172 0.611 0.476 1.000
Tolerance 0.753 0.737 0.810 0.667 0.601 0.333
Unsuccessful Efforts to Cut Down 0.756 0.826 0.252 0.805 0.906 0.040
Larger Amount/Longer Periods 0.909 0.891 0.666 0.906 0.889 0.658
Withdrawal 0.813 0.896 0.084 0.819 0.773 0.329
Great Deal of Time Spent 0.664 0.570 0.198 0.624 0.590 0.624
Giving Up/Reducing Activities 0.319 0.313 0.917 0.300 0.268 0.671
Physical/Psychological Problem 0.799 0.754 1.000 0.842 0.819 0.716