TABLE 3.
Isolate | No. of isolates |
P value (χ2 test) | |||
---|---|---|---|---|---|
Type IA | Type IB | Type II | Type III | ||
P. acnes from paired perioral lesions | 36 | 26 | 3 | 0 | |
P. acnes from paired endodontic lesions | 7 | 5 | 25 | 2 | 4 × 10−8 |
All endodontic P. acnes isolatesa | 9 | 12 | 35 | 4 | <10−10 |
n = 20.