Analytic cohort for the Cytology Sampling Study 2 and univariate differences by dysplasia status
| Variable | Without dysplasia | With dysplasia | p Value* |
|---|---|---|---|
| *All p values from likelihood ratio tests for the univariate association in a logistic regression model. All tests were one degree of freedom (df) except tooth quintile (4 df) and village (2 df). | |||
| No (%) | 490 (68%) | 230 (32%) | |
| Personal characteristics and habits | |||
| Age (y) (mean (SD)) | 55 (4.9) | 56 (4.7) | 0.018 |
| Sex (n (%) male) | 199 (41%) | 104 (45%) | 0.24 |
| Height (cm) (mean (SD)) | 159 (7.7) | 160 (7.5) | 0.14 |
| Weight (kg) (mean (SD)) | 59 (9.0) | 59 (9.0) | 0.84 |
| Systolic BP (mm Hg) (mean (SD)) | 149 (23) | 155 (25) | 0.0042 |
| Diastolic BP (mm Hg) (mean (SD)) | 92 (14) | 93 (14) | 0.39 |
| Smoker ever (n (%)) | 124 (25%) | 69 (30%) | 0.19 |
| Drinker >1 drink in last 12 months (n (%)) | 42 (9%) | 17 (7%) | 0.59 |
| Family history of cancer, yes (n (%)) | 207 (42%) | 119 (52%) | 0.017 |
| Flushing, yes (n (%)) | 52 (11%) | 34 (15%) | 0.16 |
| Missing teeth (mean (SD)) | 12 (11) | 13 (11) | 0.33 |
| Tooth loss quintiles | |||
| Teeth quintile 1, <4 teeth lost | 121 (25%) | 44 (19%) | 0.065 |
| Teeth quintile 2, 4–6 teeth lost | 95 (19%) | 43 (19%) | |
| Teeth quintile 3, 7–11 teeth lost | 93 (19%) | 43 (19%) | |
| Teeth quintile 4, 12–31 teeth lost | 92 (19%) | 67 (29%) | |
| Teeth quintile 5, edentulous | 89 (18%) | 33 (14%) | |
| Complete dentures (n (%)) | 84 (17%) | 33 (14%) | 0.34 |
| Partial dentures (n (%)) | 27 (5.5%) | 21 (9%) | 0.076 |
| Household characteristics | |||
| Village 1, (n (%)) | 157 (65%) | 85 (35%) | 0.18 |
| Village 2, (n (%)) | 108 (66%) | 56 (34%) | |
| Village 3, (n (%)) | 225 (72%) | 89 (28%) | |
| Persons in household (mean (SD)) | 4.8 (2.2) | 4.9 (2.2) | 0.63 |
| Monthly household income (RMB) (mean (SD)) | 888 (588) | 850 (571) | 0.41 |
| Per capita income RMB/person (mean (SD)) | 188 (101) | 169 (82) | 0.077 |
| Heating stove without chimney, yes (n (%)) | 31 (6%) | 31 (13%) | 0.0020 |