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Table 2 Univariate analysis of the risk factors for the development of colorectal diverticulosis

From: Prevalence and risk factors of asymptomatic colorectal diverticulosis in Taiwan

Principal parameter Diverticulosis (+) Diverticulosis (−) Pvalue
Sex, n (%)    0.001
 Men 193 (75.4) 1010 (61.5)  
 Women 63 (24.6) 633 (38.5)  
Age (yr), n (%)    0.005
  < 39 9 (3.5) 184 (11.2)  
 40-49 65 (25.4) 492 (29.9)  
 50-59 89 (34.8) 592 (36.0)  
 60-69 61 (23.8) 276 (16.8)  
  > 70 32 (12.5) 99 (6.1)  
Education (yr), n (%)   0.136
  < 10 56 (21.8) 338 (20.6)  
 10-12 103 (40.1) 723 (44.0)  
  > 12 97 (38.1) 582 (35.4)  
BMI,* n (%)    0.248
  < 25 161 (62.9) 1072 (65.2)  
 25-30 80 (31.2) 493 (30.1)  
  > 30 15 (5.9) 78 (4.7)  
NSAID use, n (%)   0.636
 No 247 (96.5) 1572 (95.7)  
 Yes 9 (3.5) 71 (4.3)  
Colon polyps   0.002
 None 146 (57.1) 1233 (75.3)  
 Hyperplastic polyp 38 (14.8) 172 (10.5)  
 Adenomatous polyp 72 (28.1) 233 (14.2)  
Smoking status, n (%)   0.045
 Never smoking 144 (56.3) 1068 (65.0)  
 Former smoking 33 (12.9) 238 (14.5)  
 Current smoking 79 (30.8) 337 (20.5)  
Alcohol drinking, n (%)   <0.001
 No 155 (60.6) 1231 (74.9)  
3 times per week 55 (21.6) 320 (19.5)  
  > 3 times per week 46 (17.8) 92 (5.6)  
Coffee drinking, n (%)   0.724
 No 144 (56.3) 907 (55.2)  
3 times per week 46 (18.0) 311 (18.9)  
  > 3 times per week 66 (25.7) 425 (25.9)  
Tea drinking, n (%)   0.486
 No 98 (38.2) 677 (41.2)  
3 times per week 53 (20.6) 311 (18.9)  
  > 3 times per week 105 (41.2) 655 (39.9)  
Spicy foods consumption, n (%) 0.269
 No 137 (53.4) 876 (53.3)  
3 times per week 74 (28.9) 434 (26.4)  
  > 3 times per week 45 (17.7) 333 (20.3)  
Betel nut use, n (%)   0.428
 No 238 (92.8) 1556 (94.7)  
 Yes 18 (7.2) 87 (5.3)  
Exercise habit, n (%)   0.667
 No 95 (37.0) 550 (33.5)  
3 times per week 72 (28.2) 490 (29.8)  
  > 3 times per week 89 (34.8) 603 (36.7)  
Vegetarian, n (%)   0.375
 No 248 (96.9) 1579 (96.1)  
 Yes 8 (3.1) 64 (3.9)  
Metabolic syndrome, n (%)   0.369
 No 164 (63.9) 1099 (66.9)  
 Yes 92 (36.1) 544 (33.1)  
  1. *BMI = body mass index, indicating weight in kg divided by body surface area. NSAID, non-steroid anti-inflammatory drug.