Table 1. DNA degradation in a subject's first mouthwash sample when analyzed as a risk-factor for DNA degradation in their second mouthwash sample.
DNA degraded in 2nd mouthwash | DNA non-degraded in 2nd mouthwash | Total | |
DNA degraded in 1st mouthwash | 9 | 43 | 52 |
DNA non-degraded in 1st mouthwash | 28 | 420 | 448 |
Total | 37 | 463 | 500 |