| Control | Bicarbonate | Chlorhexidine | BIC + CLX |
Median (IQR) | 2.5 (1.4)A | 1.3 (1.1)B | 1.3 (1.6)B | 0.9 (0.7)B |
Mean (SD) | 2.5 (1.2) | 1.6 (1.0) | 1.9 (1.8) | 1.1 (1.0) |
P-value (KW) | 0.0035 |