Table 1

Patient characteristics by study arm

TreatmentTotalP
KetorolacPlacebo
Sex0.84
 Male251338
 Female13619
 Total381957
Race0.65
 White331851
 Non-white516
 Total381957
Primary site1.00
 Oral cavity321648
 Oropharynx639
 Total381957
Smoke0.70
 Yes311748
 No628
 Total371956
Cigar years1.00
 None261238
 Medium7714
 High404
 Total371956
Pipe years0.35
 None281644
 Medium538
 High404
 Total371956
Chewing tobacco years0.41
 None321547
 Medium213
 High123
 Total351853
Drinks/weeka0.029
 None12416
 Medium251035
 High055
 Total371956
  • a The questionable value was classified as medium. For the analysis in which the “questionable” value was classified as high, P = 0.018.