| NSIs 2007 N (%) | NSIs 2009 N (%) | p-value |
---|---|---|---|
nurses | 162 (36.2%) | 127 (36.3%) | 0.008 |
medical doctors | 151 (33.7%) | 114 (32.6%) | 0.003 |
students | 72 (16.1%) | 65 (18.6%) | 0.300 |
laboratory | 16 (3.6%) | 9 (2.6 %) | 0.145 |
others | 47 (10.5%) | 32 (9.1%) | 0.025 |
total | 448 (100%) | 350 (100%) | Â |