Table 1.
Baseline characteristics of the study groups. Values are mean ± SD or number of subjects (%)
| BPTN = 56 | BPT+AMa N = 54 | |
|---|---|---|
| Age (years) | 47.9 ± 9.4 | 47.6 ± 9.0 |
| Gender | ||
| Male | 36 (64) | 27 (50) |
| Female | 20 (36) | 27 (50) |
| Ethnicity | ||
| Dutch Caucasian | 41 (73) | 40 (74) |
| Other | 15 (27) | 14 (26) |
| Education | ||
| <High school | 18 (32) | 17 (31) |
| ≥High school | 38 (68) | 37 (69) |
| Smoking | ||
| Non‐smokers | 27 (48) | 21 (39) |
| Current smokers | 29 (52) | 33 (61) |
| Alcohol | ||
| ≥2 units/day | 18 (32) | 14 (26) |
| <2 units/day | 38 (68) | 40 (74) |
| BMI (kg/m2) | 25.1 ± 3.0 | 25.3 ± 4.1 |
BMI, body mass index. BPT, basic periodontal therapy. AM, antimicrobials (amoxicillin 375 mg + metronidazole 250 mg, 3 x day x 7 days).
a
No significant differences were observed for the baseline characteristics between BPT+AM and BPT (p > .05).