Skip to main content

Table 3 Agreement between self-reported and clinically assessed number of teeth (‘0–27’, ‘28–32’) by study variables

From: Long-term effects of smoking on tooth loss after cessation among middle-aged Finnish adults: the Northern Finland Birth Cohort 1966 Study

 

n

Cohen’s kappa

95 % CI

Gender

 Male

745

0.76

0.72–0.81

 Female

929

0.79

0.75–0.83

Education

 Basic

79

0.85

0.73–0.96

 Secondary

584

0.74

0.69–0.79

 Higher

988

0.79

0.75–0.83

Tooth brushing

 Once daily or less

549

0.80

0.75–0.85

 At least twice daily

1123

0.77

0.73–0.81

Smoking status

 Never

784

0.78

0.73–0.82

 Former

400

0.82

0.76–0.88

 Current

360

0.75

0.68–0.82

Alcohol use, g/week

 Moderate to heavy drinker

170

0.74

0.64–0.85

 Non-drinker or light drinker

1504

0.78

0.75–0.81

Diabetes

 Yes

67

0.82

0.68–0.96

 No

1586

0.78

0.75–0.81

Total

1674

0.78

0.75–0.81

  1. Results are presented with Cohen’s kappa values and their 95 % confidence intervals