Research Article
HLA Haplotypes and Genotypes Frequencies in Brazilian Chronic Periodontitis Patients
Table 1
Characteristics of patients with chronic periodontitis and controls.
| | Category | Subcategory | Patients | Controls | Total | | () | () | () | | (%) | (%) | (%) |
| | Gender | Female | 57 (52.78) | 98 (64.90) | 157 (60.62) | | Male | 51 (47.22) | 53 (35.10) | 102 (39.38) |
| | Age | 34–49 years | 65 (60.18) | 97 (64.24) | 162 (62.55) | | 50–65 years | 35 (32.41) | 50 (33.11) | 85 (32.82) | | 66–81 years | 8 (7.41) | 4 (2.65) | 12 (4.63) |
| | Ethnic background | Caucasian | 64 (59.26) | 105 (69.54) | 169 (65.25) | | Afro-Brazilian | 14 (12.96) | 10 (6.62) | 24 (9.27) | | Racially mixed | 30 (27.78) | 36 (23.84) | 66 (25.48) |
| | Smoking | Smoker (A) | 23 (21.30) | 17 (11.26) | 40 (15.44) | | Nonsmoker (B) | 46 (42.59) | 108 (71.52) | 154 (59.46) | | Ex-smoker (C) | 39 (36.11) | 26 (17.22) | 65 (25.10) |
|
|
B versus A: P ≤ 0.002; OR = 0.32; 95% CI = 0.14–0.68.
B versus C: P ≤ 0.001; OR = 0.29; 95% CI = 0.15–0.54.
A versus C: P = 0.84.
|
