Table 2 Baseline data
Study period (year) | N | No. of infections | Patient ICU-days | No. of infections per 1000 patient ICU-days | Incidence-rate ratio | P value |
|---|---|---|---|---|---|---|
Baseline (2009) | 176 | 4 | 1171 | 3.4 | 1 | |
Begin implementation (2010) | 172 | 0 | 1189 | 0 | - | |
After implementation | ||||||
1 year (2011) | 195 | 0※ | 1157 | 0 | - | 0.0497 |
2 years (2012) | 191 | 1 | 1722 | 0.58 | 0.11 | 0.1985 |
3 years (2013) | 171 | 1 | 1438 | 0.7 | 0.14 | 0.3716 |
4 years (2014) | 207 | 1 | 1598 | 0.68 | 0.13 | 0.1845 |