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Table 1 Demographics of 2304 Chinese women by cervical histological examinationa

From: Dietary nutrient intake related to higher grade cervical intraepithelial neoplasia risk: a Chinese population-based study

Characteristics

Total

Without CINb

CIN1

CIN2+c

P valued

No. of participants (%)

2304 (100.0)

1503 (65.2)

564 (24.5)

237 (10.3)

 

Age (years)

     

 < 30

58 (2.5)

36 (2.4)

19 (3.4)

3 (1.3)

 

 30–39

284 (12.3)

180 (12.0)

63 (11.1)

41 (17.3)

 

 40–49

711 (30.9)

441 (29.3)

175 (31.0)

95 (40.1)

0.041

 50–59

970 (42.1)

666 (44.3)

231 (41.0)

73 (30.8)

 

 > 60

281 (12.2)

180 (12.0)

76 (13.5)

25 (10.5)

 

Education (years)

     

 0–6

472 (20.5)

309 (20.6)

117 (20.7)

46 (19.4)

 

 7–9

996 (43.2)

630 (41.9)

239 (42.4)

127 (53.6)

0.047

 > 9

836 (36.3)

564 (37.5)

208 (36.9)

64 (27.0)

 

Yearly incomee (Â¥)

     

 < 10,000

262 (11.4)

173 (11.5)

65 (11.5)

24 (10.1)

 

 10,000–30,000

1119 (48.6)

738 (49.1)

255 (45.2)

126 (53.2)

0.763

 > 30,000

923 (40.1)

592 (39.3)

244 (43.3)

87 (36.7)

 

Tobacco smoking

49 (2.1)

29 (1.9)

12 (2.1)

8 (3.4)

0.063

Menopause status

1174 (51.0)

803 (53.4)

293 (52.0)

78 (32.9)

0.001

High-risk HPVf

     

 Positive

755 (32.8)

429 (28.5)

168 (29.8)

158 (66.7)

< 0.001

 Negative

1549 (67.2)

1074 (71.5)

396 (70.2)

79 (33.3)

 

Age at menarche (years)

     

 < 13

308 (13.4)

181 (12.0)

93 (16.5)

34 (14.3)

 

 13–< 15

739 (32.1)

466 (31.0)

180 (32.0)

93 (39.2)

0.028

 15–< 17

654 (28.4)

452 (30.1)

133 (23.6)

69 (29.1)

 

 > 17

603 (26.2)

404 (26.9)

158 (28.0)

41 (17.3)

 

IUDg use

1081 (46.9)

735 (48.9)

231 (41.0)

115 (48.5)

0.892

Years of IUD use (years)

     

 < 10

1632 (70.8)

1037 (69.0)

426 (75.5)

169 (71.3)

0.287

 ≥ 10

672 (29.2)

466 (31.0)

138 (24.5)

68 (28.7)

 

SCJh visibility

     

 Fully visualized

646 (28.0)

382 (25.4)

185 (32.8)

79 (33.3)

0.114

 Not fully visualized

1658 (72.0)

1121 (74.6)

379 (67.2)

158 (66.7)

 

Vaginal pH

     

 < 4.5

514 (22.3)

341 (22.7)

106(18.8)

67 (28.3)

0.228

 ≥ 4.5

1790 (77.7)

1162 (77.3)

458 (81.2)

170 (71.7)

 

Had gynecologic surgery

397 (17.2)

255 (17.0)

107 (19.0)

35 (14.8)

0.647

Had vaginitis

140 (6.1)

82 (5.5)

38 (6.7)

20 (8.4)

0.108

Sexual activity in menstrual period

56 (2.4)

39 (2.6)

9 (1.6)

8 (3.4)

0.549

  1. aData were presented as number (%) of participants
  2. bCIN, cervical intraepithelial neoplasia. All CIN status is by histology
  3. cCIN2+ included CIN 2, CIN 3 and SCC
  4. dP values for differences between groups were obtained from the chi-square test for categorical categoric variables
  5. eRepresent in terms of Chinese Renminbi (RMB)
  6. fHPV, human papilloma virus
  7. gIUD, intrauterine device
  8. hSCJ, squamous-columnar junction
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Nutrition & Metabolism

ISSN: 1743-7075

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