Table 2.
Correlation coefficients to establish relationship between Porphyromonas gingivalis load in plaque, umbilical cord blood and other clinical parameters
| Group | Variable | Values | P. gingivalis in plaque | PD | CAL |
|---|---|---|---|---|---|
| Full term | P. gingivalis in blood | Rho | −0.16 | −0.05 | −0.10 |
| P | 0.21 | 0.68 | 0.42 | ||
| n | 63 | 63 | 63 | ||
| Preterm | P. gingivalis in blood | Rho | 0.85 | 0.91 | 0.84 |
| P | <0.001* | <0.001* | <0.001* | ||
| n | 72 | 72 | 72 |
*P<0.05-Statistically significant. Rho – Spearman’s correlation coefficient; PD – Pocket depth; CAL – Clinical attachment level; P. gingivalis – Porphyromonas gingivalis, n – number