Table 4. Odds ratios for LSIL and HSIL risk according to 50% point value of the serum folate in the control group and hrHPV infection.
| Serum folate | hrHPV |
LSIL |
HSIL |
||||
|---|---|---|---|---|---|---|---|
| N | Crude OR (95% CI) | Adjusted OR (95% CI)a | N | Crude OR (95% CI) | Adjusted OR (95% CI)a | ||
| ⩾18.2 | − | 56 | Reference | Reference | 7 | Reference | Reference |
| ⩾18.2 | + | 21 | 0.65 (0.38–1.11) | 0.59 (0.34–1.03) | 25 | 6.15 (2.60–14.53) | 4.11 (1.71–9.88) |
| <18.2 | − | 109 | 1.69 (1.18–2.42) | 1.60 (1.11–2.31) | 21 | 2.61 (1.09–6.22) | 2.40 (1.00–5.75) |
| <18.2 | + | 61 | 2.51 (1.65–3.83) | 2.34(1.51–3.63) | 72 | 23.74 (10.62–53.11) | 16.61 (7.34–37.62) |
Abbreviations: LSIL, low-grade squamous intraepithelial lesions; HSIL, high-grade squamous intraepithelial lesions; OR, odds ratio; CI, confidence interval.
a
Adjusted for age, education level, annual income, spouse smoking, age at menarche, menopause, age at first intercourse, gravidity and intrauterine device.