Table 1.
General characteristics of the study population (n=102)
| Study group (n=68) | Control group (n=34) | P-value | |
|---|---|---|---|
|
|
|||
| Average (SD) or n (%) | |||
| Age | 61.2 (8.1) | 44.8 (5.2) | t (92.9)=12.37; P < 0.001 |
| Education level | Χ2 (1)=13.45; P < 0.001 | ||
| Elementary | 51 (75.0%) | 13 (38.2%) | |
| Secondary | 9 (13.2%) | 13 (38.2%) | |
| Higher | 8 (11.8%) | 8 (23.5%) | |
| Race | F ns | ||
| Caucasian | 63 (92.6%) | 31 (91.2%) | |
| Black | 5 (7.4%) | 3 (8.8%) | |
| BMI | 27.8 (5.4) | 26.2 (4.9) | U=954.0; W=1549.0; ns |
| Tobacco consumption | Χ2 (1)=10.88; P < 0.01 | ||
| Never | 49 (72.1%) | 13 (38.2%) | |
| Smokers or former smokers | 19 (27.9%) | 21 (61.8%) | |
| Alcohol consumption | Χ2 (1)=0.12; ns | ||
| Never | 14 (20.6%) | 8 (23.5%) | |
| Current or previous | 54 (79.4%) | 26 (76.5%) | |
| At least one dental visit in the last year | 16 (23.5%) | 12 (35.3%) | Χ2 (1)=1.58; ns |
BMI–Body mass index; F–Fisher test; ns–not significant; t–unpaired t-test; U, W–non-parametric Wilcoxon-Mann-Whitney test; Χ2–Chi-square test.