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Table 2 Distribution of GOHAI score by age

From: Oral health-related quality of life and related factors among residents in a disaster area of the Great East Japan Earthquake and giant tsunami

  Age group (in years) Total (N = 1987)
18–29 30–39 40–49 50–59 60–69 70 –79 ≥ 80
Range 25–60 33–60 12–60 12–60 18–60 16–60 28–60 12–60
34–60 34–60 30–60 25–60 31–60 25–60 N. A. 25–60
Mean ± SD 54.7 ± 7.1 53. 8 ± 6.9 52.1 ± 7.9 50.2 ± 9.2a 51.4 ± 8.6b 52.8 ± 7.8 52.7 ± 8.4 52.0 ± 8.3
53.3 ± 6.5 54.3 ± 6.5 53.7 ± 6.8 52.2 ± 7.8 52.6 ± 7.2 50.8 ± 8.8 N. A. 53.1 ± 7.0
Median 58.0 56.0 54.0c 52.0c 53.0c 55.0d 56.0 54.0c
55.0 55.5 55.7 54.2 54.2 52.8 N.A. 55.0
25th percentile 50.8 50.0 47.8 46.0 46.0 48.0 47.8 47.0
49.5 51.0 50.4 46.5 47.0 45.3 N. A. 48.7
75th percentile 60.0 60.0 58.0 59.0 59.0 60.0 60.0 60.0
59.1 59.9 59.5 59.0 59.0 58.8 N. A. 59.3
  1. Note. Upper values show survey results and lower values represent the 2006 national standard in Japan
  2. NA Not applicable because the study for the 2006 national standard did not target this age class
  3. aSignificantly lower than 20s (p = 0.002), 30s, 70s, and 80s (all p < 0.001) by multiple comparisons following Kruskal-Wallis test between age groups
  4. bSignificantly lower than 20s (p = 0.029) by multiple comparisons following Kruskal-Wallis test between age groups
  5. cSignificantly lower median than national standard (p < 0.001)
  6. dSignificantly lower median than national standard (p = 0.016)