Table 1 Univariate and Multivariate Logistic Regression of Potential Factors Associated With the Prevalence of Warts (n = 15384).

From: Epidemiology and Clinical Profile of Cutaneous Warts in Chinese College Students: A Cross-Sectional and Follow-Up Study

Characteristics

No. of cases/No. of students (%)a

P value

Unadjusted OR (95% CI)

Adjusted OR (95% CI)b

Age, years

   14–20

119/8249 (1.4)

 

1.00 (ref)

1.00 (ref)

   21–25

83/6185 (1.3)

 

0.94 (0.71,1.24)

0.94 (0.70, 1.26)

   26–35

13/811 (1.6)

 

1.12 (0.63, 2.00)

1.03 (0.55, 1.92)

   36–44

0/74 (0.0)

0.68

<0.001

(<0.001, >999)

<0.001

(<0.001, >999)

Sex

   Female

83/8830 (0.9)

 

1.00 (ref)

1.00 (ref)

   Male

132/6461 (2.0)

<0.0001

2.20 (1.67, 2.90)

2.06 (1.55, 2.74)

Ethnicity

   Han

190/13789 (1.4)

 

1.00 (ref)

1.00 (ref)

   Other

24/1458 (1.7)

0.41

1.20 (0.78, 1.84)

1.09 (0.69, 1.71)

Residential area

   Urban

133/10427 (1.3)

 

1.00 (ref)

1.00 (ref)

   Rural

81/4705 (1.7)

0.03

1.37 (1.03, 1.81)

1.19 (0.79, 1.80)

Region

   North

58/4463 (1.3)

 

1.00 (ref)

1.00 (ref)

   Northeast

32/1692 (1.9)

 

1.46 (0.95, 2.26)

1.51 (0.96, 2.37)

   East

45/3598 (1.3)

 

0.96 (0.65, 1.42)

0.91 (0.61, 1.36)

   Central

23/2105 (1.1)

 

0.84 (0.52, 1.36)

0.79 (0.48, 1.30)

   South

7/610 (1.1)

 

0.88 (0.40, 1.94)

0.87 (0.39, 1.93)

   Northwest

24/1134 (2.1)

 

1.64 (1.02, 2.65)

1.45 (0.88, 2.38)

   Southwest

22/1515 (1.5)

 

1.12 (0.68, 1.84)

1.05 (0.63, 1.74)

   Hong Kong, Macao, and Taiwan

0/44 (0.0)

0.16

<0.001

(<0.001, >999)

<0.001

(<0.001, >999)

Father’s occupation

   Farmer

69/4276 (1.6)

 

1.00 (ref)

1.00 (ref)

   Worker

41/2533 (1.6)

 

1.00 (0.68, 1.48)

1.42 (0.76, 2.65)

   Clerk

64/5300 (1.2)

 

0.75 (0.53, 1.05)

1.15 (0.58, 2.31)

   Other

41/3129 (1.3)

0.28

0.81 (0.55, 1.20)

1.16 (0.59, 2.29)

Mother’s occupation

   Farmer

79/4785 (1.7)

 

1.00 (ref)

1.00 (ref)

   Worker

29/1972 (1.5)

 

0.89 (0.58, 1.37)

0.83 (0.42, 1.65)

   Clerk

61/5013 (1.2)

 

0.73 (0.52, 1.03)

0.96 (0.47, 1.94)

   Other

46/3469 (1.3)

0.31

0.80 (0.56, 1.15)

0.95 (0.49, 1.84)

Father’s education level

   High school above

78/6429 (1.2)

 

1.00 (ref)

1.00 (ref)

   High school

59/3979(1.5)

 

1.23 (0.87, 1.72)

0.94 (0.60, 1.46)

   Junior school

59/3810 (1.6)

 

1.28 (0.91, 1.80)

0.93 (0.56, 1.55)

   Less than junior school

19/1073 (1.8)

0.32

1.47 (0.89, 2.43)

0.78 (0.39, 1.59)

Mother’s education level

   High school above

60/5279 (1.1)

 

1.00 (ref)

1.00 (ref)

   High school

54/3808 (1.4)

 

1.25 (0.86, 1.81)

1.21 (0.77, 1.90)

   Junior school

58/3951 (1.5)

 

1.30 (0.90, 1.86)

1.25 (0.74, 2.11)

   Less than junior school

43/2289 (1.9)

0.09

1.67 (1.12, 2.47)

1.53 (0.83, 2.82)

  1. aNumbers may not add up to total due to missing data. bMutually adjusted for all other variables in the table. CI = confidence interval; OR = odds ratio.
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