First line method | Hospital | Pre intervention (%) | Post intervention (%) | Pre-intervention model coefficients with respect to the control hospital | p-value for model coefficients with respect to the control hospital | Post-intervention model coefficients with respect to the changes in risk in the control hospital | p-value for model coefficients with respect to the control hospital |
---|---|---|---|---|---|---|---|
Risk ratio (95% CI) | Risk ratio (95% CI) | ||||||
pH | H1 | 9/49 (18.4) | 30/48 (62.5) | 0.41 (0.21 to 0.79) | 0.007 | 4.43 (1.99 to 9.87) | <0.001 |
H2 | 5/43 (11.6) | 32/44 (72.7) | 0.26 (0.11 to 0.62) | 0.002 | 8.14 (3.06 to 21.67) | <0.001 | |
H3 | 6/44 (13.6) | 13/40 (32.5) | 0.30 (0.14 to 0.67) | 0.003 | 3.1 (1.14 to 8.43) | <0.05 | |
H4 (control) | 24/53 (45.3) | 16/46 (33.3) | Reference | 0.77 (0.47 to 1.26) | 0.296 |