Table 2.
Detection frequency and copy numbers of nine pathogens from clinical samples.
| Pathogens | Detection rate; No. of subjects (%) | P-valuea | Copy numbers; Mean ± SD, Median (IQR) | P-valueb | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Healthy(n = 144) | Chronic periodontitis | Healthy(n = 144) | Chronic periodontitis | |||||||
| Slight(n = 95) | Moderate(n = 245) | Severe(n = 208) | Slight(n = 95) | Moderate(n = 245) | Severe(n = 208) | |||||
| Pg | 130 (90.3%) | 90 (94.7%) | 242 (98.8%) | 205 (98.6%) | <0.001 | 3.73 ± 1.43 4.05 (3.07-4.73) |
4.75 ± 1.37 5.07 (4.44-5.53) |
5.51 ± 0.92 5.70 (5.24-6.02) |
5.70 ± 0.90 5.89 (5.44-6.18) |
<0.001 |
| Tf | 71 (49.3%) | 84 (88.4%) | 239 (97.6%) | 207 (99.5%) | <0.001 | 1.71 ± 1.58 1.89 (0.00-3.11) |
3.64 ± 1.46 4.04 (3.20-4.64) |
4.45 ± 0.94 4.60 (4.06-5.06) |
4.78 ± 0.64 4.86 (4.50-5.18) |
<0.001 |
| Td | 101 (70.1%) | 78 (82.1%) | 236 (96.3%) | 204 (98.1%) | <0.001 | 2.45 ± 1.39 2.75 (1.24-3.58) |
3.47 ± 1.72 3.94 (2.96-4.67) |
4.55 ± 1.08 4.73 (4.25-5.20) |
4.74 ± 0.91 4.91 (4.43-5.29) |
<0.001 |
| Pi | 64 (44.4%) | 70 (73.7%) | 215 (87.8%) | 202 (97.1%) | <0.001 | 1.81 ± 2.04 0.00 (0.00-3.95) |
3.52 ± 2.15 4.32 (1.38-5.14) |
4.51 ± 1.76 5.09 (4.49-5.52) |
5.00 ± 1.11 5.21 (4.60-5.67) |
<0.001 |
| Fn | 144 (100%) | 95 (100%) | 245 (100%) | 208 (100%) | NA | 5.02 ± 0.61 5.05 (4.59-5.50) |
5.30 ± 0.55 5.27 (4.94-5.73) |
5.47 ± 0.48 5.53 (5.19-5.80) |
5.56 ± 0.45 5.55 (5.33-5.89) |
<0.001 |
| Cr | 130 (90.3%) | 94 (98.9%) | 244 (99.6%) | 208 (100%) | <0.001 | 3.52 ± 1.15 3.74 (3.06-4.33) |
4.36 ± 0.74 4.42 (4.01-4.86) |
4.72 ± 0.58 4.78 (4.44-5.11) |
4.88 ± 0.51 4.98 (4.58-5.21) |
<0.001 |
| Aa | 11 (7.6%) | 15 (15.8%) | 35 (14.3%) | 52 (25.0%) | <0.001 | 0.45 ± 0.93 0.0056 (0.00-0.42) |
0.59 ± 1.30 0.0041 (0.00-0.04) |
0.55 ± 1.28 0.0025 (0.00-0.02) |
0.96 ± 1.61 0.0037 (0.00-2.26) |
0.107 |
| Pa | 137 (95.1%) | 89 (93.7%) | 232 (94.7%) | 206 (99.0%) | 0.055 | 3.94 ± 1.11 4.15 (3.47-4.62) |
4.17 ± 1.30 4.39 (3.80-5.03) |
4.53 ± 1.28 4.82 (4.28-5.24) |
4.92 ± 0.87 5.05 (4.53-5.49) |
<0.001 |
| Ec | 139 (96.5%) | 94 (98.9%) | 243 (99.2%) | 207 (99.5%) | 0.076 | 3.75 ± 0.85 3.88 (3.20-4.40) |
4.23 ± 0.80 4.20 (3.78-4.68) |
4.49 ± 0.67 4.59 (4.13-4.93) |
4.51 ± 0.65 4.54 (4.08-4.92) |
<0.001 |
aChi-squared test, bKruskal-Wallis One Way Analysis of Variance on Ranks.
NA, not applicable; IQR, interquartile range.