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Table 3 BMI among current NSAID/aspirin users and non-users in 1991–1994 and in 1997–2001 [17, 18]

From: Changing population characteristics, effect-measure modification, and cancer risk factor identification

 

1991–1994

1997–2001

 
 

NSAIDs/aspirin Yes (39% of population) N (%)

NSAIDs/aspirin No (61% of population) N (%)

NSAIDs/aspirin Yes (42% of population) N (%)

NSAIDs/aspirin No (58% of population) N (%)

P value1

BMI (kg/m2)

     

≤ 23

113 (19.0)

174 (18.7)

63 (12.5)

109 (16.0)

0.65

24–25

104 (17.5)

168 (18.1)

73 (14.5)

99 (14.5)

 

26–29

200 (33.6)

306 (32.9)

181 (35.8)

246 (36.0)

 

≥ 30

178 (29.9)

283 (30.4)

188 (37.2)

229 (33.5)

 
  1. 1p value compares differences in distribution over time using a χ2 statistic.