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Table 1 Descriptive statistics of subjects by HPV 16 serology status

From: Human papillomavirus serology and tobacco smoking in a community control group

Characteristic

All HPV16 negative (N = 767)

Any HPV 16 Pos (N = 339)

P-value*

Age

   

  Mean (sd)

60.7 (10.7)

60.7 (11.7)

0.99

Sex, n (%)

   

  Male

567 (73.9)

248 (73.2)

 

  Female

200 (26.1)

91 (26.8)

0.82

Race, n (%)

   

  White

707 (92.2)

290 (85.5)

 

  Other

59 (7.7)

49 (14.5)

0.002

Education**, n (%)

   

  At least some college

545 (71.1)

229 (67.6)

 

  HS diploma or less

201 (26.2)

102 (30.1)

0.21

Income**b, n (%)

   

  < $50,000

242 (31.6)

129 (38.1)

 

  ≥ $50,000

450 (58.7)

171 (50.4)

0.02

Smoking pack-years, n (%)

   

  None

311 (40.5)

131 (38.6)

 

  First tertile (>0 to 16)

149 (19.4)

69 (20.4)

 

  Second tertile (16 to 22)

156 (20.3)

69 (20.4)

 

  Third tertile (22+)

151 (19.7)

70 (20.6)

0.93

Average drinks per week, n (%)

   

  First quartile (<2.2)

193 (25.2)

82 (24.2)

 

  Second quartile (2.2-5.5)

192 (25.0)

84 (24.8)

 

  Third quartile (5.5-13.6)

198 (25.8)

78 (23.0)

 

  Fourth quartile (13.6+)

181 (23.6)

95 (28.0)

0.45

Age of intercourseb, n (%)

   

  <18 years

155 (20.2)

95 (28.0)

 

  ≥18 years

295 (38.5)

118 (34.8)

0.01

Number of sexual partnersa,b, n (%)

   

  <16

165 (46.5)

95 (45.9)

 

  16+

165 (46.5)

99 (47.8)

0.86

  1. *Fisher’s exact test used to calculate p-value; **Values do not add to 100% due to missing data.
  2. aPhase 2 only.
  3. bThese characteristics were dichotomized at their median values.