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Table 1 Descriptive statistics for the sample according to the number of remaining teeth

From: Number of remaining teeth and health-related quality of life: the Korean National Health and Nutrition Examination Survey 2010–2012

Variables

Number of remaining teeth

p

0–15

16–20

21–28

 

Unweighted n

2169

1068

7186

 

Age (years)

69.6 ± 0.31

62.3 ± 0.51

42.1 ± 0.19

< 0.001

Men (yes, %)

43.8 (1.3)

47.4 (1.9)

50.0 (0.4)

< 0.001

BMI (kg/m2)

23.5 ± 0.09

24.3 ± 0.13

23.7 ± 0.04

< 0.001

Waist circumference (cm)

83.1 ± 0.28

84.6 ± 0.35

80.7 ± 0.14

< 0.001

Current smoking (yes, %)

21.1 (1.2)

19.8 (1.5)

24.2 (0.5)

0.004

Alcohol intake (yes, %)

37.2 (1.3)

45.9 (1.8)

61.1 (0.6)

< 0.001

Regular exercise (yes, %)

14.3 (1.1)

19.1 (1.5)

20.1 (0.5)

< 0.001

Income (Q1) (yes, %)

48.6 (1.5)

34.3 (1.9)

11.8 (0.5)

< 0.001

Education ≥13 years (yes, %)

19.1 (1.2)

30.2 (1.9)

78.3 (0.6)

< 0.001

Urban living (yes, %)

60.7 (2.9)

69.8 (2.9)

82.6 (1.6)

< 0.001

Having a spouse (yes, %)

65.6 (1.3)

77.8 (1.7)

81.8 (0.8)

< 0.001

Metabolic syndrome (yes, %)

48.9 (1.5)

49.8 (2.0)

22.8 (0.4)

< 0.001

EQ-5D

0.850 ± 0.005

0.897 ± 0.006

0.960 ± 0.001

< 0.001

  1. Data presented as mean ± SE or percentage (SE)
  2. The p-values were obtained by one-way analysis of variance or chi-square test
  3. EQ-5D: The EuroQoL five dimension questionnaire (Mobility, Self-care, Usual activities, Pain/discomfort, Anxiety/depression)