Table 3.
Distribution of patients, n (%), in groups with regard to age (YP and OP) and proportions (%) of A. actinomycetemcomitans of total viable count (TVC) in the samples from the patients (n = 435)
| Age groups | >0-1% | >1-5% | >5-25% | >25-50% | >50% | n |
|---|---|---|---|---|---|---|
| YP | 38 (23.5) | 30 (18.5) | 31 (19.1) | 17 (10.5) | 46 (28.3) | 162 |
| OP | 108 (39.6) | 51 (18.7) | 79 (28.9) | 20 (7.3) | 15 (5.5) | 273 |
| YP + OP | 146 (33.6) | 81 (18.6) | 110 (25.3) | 37 (8.5) | 61 (14.0) | 435 |
Samples containing >50% Aa were significantly more common among YP than they were among OP (p < 0.001).