Table 1 The characteristics of subjects in total group and by periodontitis.
Total group | Periodontitis | P-value | |||||
|---|---|---|---|---|---|---|---|
Unweighted N | Weighted % (95% CI) | No | Yes | ||||
Unweighted N | Weighted% (95% CI) | Unweighted N | Weighted % (95% CI) | ||||
Age (years) | 9728 | 45.9 (45.3–46.5) | 6533 | 42.4 (41.7–43.0) | 3195 | 54.3 (53.6–55.1) | <0.001* |
Gender | |||||||
Male | 4110 | 49.2 (48.1–50.2) | 2466 | 45.5 (44.1–46.8) | 1644 | 58.0 (56.3–59.7) | <0.001† |
Female | 5618 | 50.8 (49.8–51.9) | 4067 | 54.5 (53.2–55.9) | 1551 | 42.0 (40.3–43.7) | |
Income | |||||||
Low | 2318 | 24.7 (23.1–26.3) | 1470 | 23.4 (21.7–25.2) | 848 | 27.7 (25.5–30.1) | <0.001† |
Middle low | 2423 | 25.2 (23.8–26.7) | 1572 | 24.5 (22.8–26.2) | 851 | 27.0 (25.1–29.1) | |
Middle high | 2486 | 25.0 (23.6–26.5) | 1735 | 25.8 (24.2–27.4) | 751 | 23.2 (21.3–25.3) | |
High | 2446 | 25.1 (23.1–27.2) | 1723 | 26.3 (24.1–28.7) | 723 | 22.0 (19.7–24.6) | |
Education | |||||||
≤Elemental school | 1999 | 15.5 (14.3–16.8) | 1069 | 11.5 (10.4–12.6) | 930 | 25.2 (22.9–27.7) | <0.001† |
Middle school | 966 | 8.9 (8.2–9.7) | 525 | 6.9 (6.2–7.6) | 441 | 13.8 (12.2–15.5) | |
High school | 2993 | 38.0 (36.6–39.5) | 2113 | 39.5 (37.8–41.2) | 880 | 34.5 (32.2–36.8) | |
≥University or college | 2940 | 37.6 (35.8–39.4) | 2289 | 42.2 (40.2–44.2) | 651 | 26.5 (23.8–29.4) | |
Smoking | |||||||
Never | 5728 | 57.4 (56.3–58.6) | 4164 | 62.1 (60.6–63.6) | 1564 | 46.0 (44.1–48.0) | <0.001† |
Current or past | 3553 | 42.6 (41.4–43.7) | 2085 | 37.9 (36.4–39.4) | 1468 | 54.0 (52.0–55.9) | |
Diabetes mellitus | |||||||
Normal | 914 | 8.4 (7.8–9.2) | 447 | 5.7 (5–6.4) | 467 | 15.3 (13.8–16.9) | <0.001† |
Impaired fasting glucose | 1895 | 21.9 (20.7–23.1) | 1119 | 18.8 (17.5–20.1) | 776 | 29.6 (27.5–31.8) | |
Diabetes | 5447 | 69.7 (68.3–71) | 4014 | 75.6 (74–77.1) | 1433 | 55.1 (52.9–57.4) | |
Interdental flossing | |||||||
No | 7234 | 76.4 (75.1–77.6) | 4593 | 72.2 (70.7–73.7) | 2641 | 86.5 (84.7–88.0) | <0.001† |
Yes | 2047 | 23.6 (22.4–24.9) | 1658 | 27.8 (26.3–29.3) | 389 | 13.5 (12.0–15.3) | |
Interdental brushing | |||||||
No | 7504 | 79.1 (78.0–80.2) | 4931 | 77.4 (76.0–78.7) | 2753 | 83.3 (81.3–85.2) | <0.001† |
Yes | 1777 | 20.9 (19.8–22.0) | 1320 | 22.6 (21.3–24.0) | 457 | 16.7 (14.8–18.7) | |
Regular walking | |||||||
Yes | 3541 | 41.1 (39.6–42.5) | 2477 | 43.3 (41.6–45.0) | 1064 | 35.8 (33.5–38.1) | <0.001† |
No | 5355 | 58.9 (57.5–60.4) | 3516 | 56.7 (55.0–58.4) | 1839 | 64.2 (61.9–66.5) | |
