Skip to main content

Table 3 Age-standardized percentage of oral hygiene and the periodontal status in the Dutch population from the Dutch National Oral Health Survey 1995–2013

From: Trends in socioeconomic inequality of periodontal health status among Dutch adults: a repeated cross-sectional analysis over two decades

Age-standardized percentage (95% CI) 1995 (n = 917) 2002 (n = 795) 2007 (n = 669) 2013 (n = 702)
Oral hygiene
 OHI-S = 0 12.7 (10.5–14.9) 8.9 (7.0–10.9) 20.6 (17.5–23.7) 28.1 (24.8–31.5)
 OHI-S = 1 46.2 (42.9–49.4) 49.8 (46.4–53.3) 56.8 (53.0–60.6) 60.9 (57.3–64.5)
 OHI-S = 2, 3 41.1 (37.9–44.4) 41.2 (37.8–44.6) 22.6 (19.4–25.8) 10.9 (8.6–13.2)
Periodontal status
 PDI = 0 51.4 (48.1–54.7) 46.5 (43.0–49.9) 56.3 (52.6–60.0) 60.6 (57.0–64.1)
 PDI = 1 42.0 (38.8–45.3) 45.0 (41.6–48.5) 36.8 (33.1–40.5) 34.0 (30.5–37.5)
 PDI = 2 6.5 (4.9–8.2) 8.5 (6.6–10.4) 6.9 (5.1–8.7) 5.4 (3.7–7.0)
  1. Percentages of oral hygiene and the periodontal status were age-standardized by the direct method, with the age distribution of the Dutch population in 2006 as the reference