Table 1.

Prevalence (%) of baseline characteristics of subjects by frequency of aspirin or nonaspirin NSAID use in 1992, IWHS

Times weeklyAspirin
Nonaspirin NSAIDs
0
<1
1
2-5
≥6
0
<1
1
2-5
≥6
n = 627n = 7,524n = 492n = 799n = 5,718n = 16,428n = 4,158n = 836n = 2,181n = 3,557
Age (y)*
    61-6535413638343642374037
    66-7036353535353535383435
    71+29242927312923252628
BMI, ≥30 kg/m225192021252021242634
WHR, ≥0.8278,52465049534947515156
Energy intake, ≥1,707 kcal/d,49505152495050515250
Dietary fiber, ≥18.6 mg/d,50505152495050535149
Calcium, ≥1,036 mg/d,49485351534951535253
Vitamin E, ≥9.7 mg/d,49485152534951545353
Current multivitamin use31313535373134373737
Current estrogen replacement*15161818191519181923
Current alcohol use*73646464696961626672
Current smoker*98891098998
Physical activity
    Low48464544464645474649
    Moderate27283030272830293027
    High25262526272725242424
Family history of colon cancer*3333333333
History of diabetes*5444754356
History of migraines*9781113810111314
History of rheumatoid arthritis*12789157891627
History of osteoarthritis*19121315231113172445
  • * 1992 questionnaire.

  • 1986 questionnaire.

  • Cut point is the cohort median.