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Table 3 Association between the number of teeth with dental caries and periodontal disease severity in the 35- to 44-year-old group

From: The relationship between different types of caries and periodontal disease severity in middle-aged and elderly people: findings from the 4th National Oral Health Survey of China

DFT

(mean ± SD)

Degree of periodontitis

Model 1 a

Model 2 b

Model 3 c

CAL ≤ 3 mm

N = 2944

CAL = 4–5 mm

N = 1124

CAL ≥ 6 mm

N = 339

P value and

OR (95% CI)

P value and

OR (95% CI)

P value and

OR (95% CI)

Type ABC

1.93 ± 2.71

2.42 ± 3.09

2.89 ± 3.39

 < 0.001

1.07 (1.05,1.09)

 < 0.001

1.09 (1.07,1.11)

 < 0.001

1.09 (1.07, 1.11)

Type A

1.52 ± 2.22

1.67 ± 2.32

1.65 ± 2.16

0.042

1.03 (1,1.06)

0.001

1.06 (1.03,1.09)

 < 0.001

1.06 (1.03,1.09)

Type B

0.38 ± 1.18

0.69 ± 1.55

1.11 ± 2.08

 < 0.001

1.23 (1.19,1.27)

 < 0.001

1.23 (1.19,1.27)

 < 0.001

1.21 (1.17,1.25)

Type C

0.03 ± 0.28

0.06 ± 0.43

0.13 ± 0.61

 < 0.001

1.43 (1.27,1.59)

 < 0.001

1.44 (1.28,1.6)

 < 0.001

1.40 (1.24,1.56)

  1. 95% CI, 95% Confidence intervals
  2. aModel 1: DFT was included as the only independent variable in the ordered logistic regression analysis
  3. bModel 2: Social economic status, sex, area, education level, and household income per capita were added to Model 1
  4. cModel 3: Oral health-related behaviours such as smoking status, tooth brushing frequency, use of dental floss, use of a toothpick, alcohol consumption and diabetes were added to Model 2
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BMC Oral Health

ISSN: 1472-6831

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