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Table 1 Characteristics of study participants with periodontal examinations according to the CDC/AAP case definition (Eke et al., 2012)

From: Dental caries is associated with severe periodontitis in Chilean adults: a cross-sectional study

 OverallDegree of periodontitis
 nNoMildModerateSevereTotal Periodontitis
Total 121 (12.17%)18 (1.81%)575 (57.85%)280 (28.17%)873 (87.83%)
Gender
 Female558 (56.1%)83 (14.8%)*14 (2.5%)333 (59.6%)128 (22.9%)*475 (85.1%)*
 Male436 (43.8%)38 (8.7%)4 (0.9%)242 (55.5%)152 (34.8%)398 (91.2%)
Age, years 39.1 ± 2.937.5 ± 2.2‡§39.8 ± 2.940.3 ± 2.8‡§ 
Smoking status
 Never/Former smokers556 (55.9%)82 (14.7%)*13 (2.3%)314 (56.4%)147 (26.4%)556 (85.2%)*
 Current smokers438 (44.0%)39 (8.8%)5 (1.1%)261 (59.5%)133 (30.3%)438 (91.1%)
Education
  ≤ 12 years765 (76.9%)88 (11.0%)11 (1.4%)443 (57.9%)223 (29.1%)470 (88.5%)
  >  12 years229 (23.0%)33 (14.4%)7 (3.0%)132 (57.6%)57 (24.8%)196 (85.5%)
Monthly income
  < 286.000 CLP619 (62.2%)68 (10.9%)10 (1.6%)364 (58.8%)177 (28.5%)551 (89.0%)
  ≥ 286.000 CLP375 (37.7%)53 (14.1%)8 (2.1%)211 (56.2%)103 (27.4%)322 (85.8%)
Diabetes mellitus
 Yes52 (5.2%)4 (7.6%)1 (1.9%)26 (50.0%)21 (40.3%)*48 (92.3%)
 No942 (94.7%)117 (12.4%)17 (1.8%)549 (58.2%)259 (27.4%)825 (87.5%)
Caries
 Yes855 (86.0%)91 (10.6%)*15 (1.7%)498 (58.2%)251 (29.3%)*764 (89.3%)*
 No139 (13.9%)30 (21.5%)3 (2.1%)77 (55.4%)29 (20.8%)109 (78.4%)
  1. Data are presented as numbers (percentages) or means ± standard deviation (SD)
  2. *Significant differences in the following variables: gender, smoking status, diabetes and caries (Chi-square test p < 0.05)
  3. †‡§ Significant differences in age (Kruskal-Wallis test p < 0.004167)