Table 1. Population characteristics of study participants in pre-PCHS and PCHS phases, stratified by enrolled hospitals.
| Patients No. |
Age (mean±SD) |
Length of stay (mean±SD) |
Patients with at least one HAI No. (%) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Group | Healthcare Structure | Total | Pre-PCHS | PCHS | Pre-PCHS | PCHS | Pre-PCHS | PCHS | Pre-PCHS | PCHS | Statistical significance |
| I1 | Feltre | 2,812 | 1,599 | 1,213 | 73.1±16.4 | 74.9±15.4 | 8.7±5.7 | 10.0±6.1 | 77 (4.8%) | 30 (2.5%) |
P = 0.0013 OR, 0.50 95% CI, 0.33–0.77 |
| Foggia | 1,951 | 966 | 985 | 72.4±15.9 | 74.7±14.8 | 9.9±5.4 | 12.0±7.1 | 106 (11.0%) | 36 (3.7%) |
P<0.0001 OR, 0.31 95% CI, 0.21–0.45 |
|
| Roma | 3,116 | 1,611 | 1,505 | 68.0±17.8 | 68.1±17.2 | 10.4±8.9 | 11.0±7.3 | 50 (3.1%) | 20 (1.3%) |
P = 0.0008 OR, 0.42 95% CI, 0.25–0.71 |
|
| I2 | Tolmezzo | 2,453 | 1,186 | 1,267 | 74.3±14.3 | 75.9±13.3 | 10.6±9.8 | 9.8±6.3 | 25 (2.1%) | 21 (1.7%) |
P = 0.4111 OR, 0.78 95% CI, 0.44–1.41 |
| Vigevano | 1,129 | 568 | 561 | 72.7±15.5 | 72.6±16.1 | 8.9±5.4 | 9.6±6.2 | 26 (4.6%) | 21 (3.7%) |
P = 0.4829 OR, 0.81 95% CI, 0.45–1.46 |
|
| Tot. (I1+I2) | 11,461 | 5,930 | 5,531 | 71.8±16.4 | 73.0±15.8 | 9.7±7.6 | 10.5±6.7 | 284 (4.8%) | 128 (2.3%) |
P<0.0001 OR, 0.47 95% CI, 0.38–0.58 |
|
| extC | Messina | 381 | 146 | 235 | 71.3±14.9 | 72.3±15.7 | 11.6±8.9 | 9.7±5.7 | 12 (8.2%) | 16 (6.8%) |
P = 0.6080 OR, 0.82 95% CI, 0.37–1.78 |
I1, Intervention group 1; I2, Intervention group 2; extC, external control hospital.