Table 2 Demographic characteristics of study patients
Characteristic | Baseline (n= 115) | Intervention (n= 1,058) | Statistics and P value | |
|---|---|---|---|---|
| Â | Â | First half ( n = 573) | Second half ( n = 485) | Â |
Age (years) | 63.22 ± 17.62 | 61.29 ± 15.49 | t test, P = 0.212 | |
|  |  | 61.66 ± 15.26 | 60.86 ± 15.75 | t test, P = 0.403 |
Male | 42 (36.5) | 376 (35.5) | Chi-square test, P = 0.834 | |
| Â | Â | 203 (35.4) | 173 (35.7%) | Chi-square test, P = 0.935 |
APACHE II score | 17.44 ± 6.80 | 18.12 ± 7.40 | t test, P = 0.357 | |
|  |  | 18.30 ± 7.54 | 17.91 ± 7.24 | t test, P = 0.392 |
Length of ICU stay (days) | 2.06 (1, 5) | 2.65 (1, 6) | Mann-Whitney U test, P = 0.920 | |
| Â | Â | 2.02 (0.9, 5) | 2.85 (2, 6) | Mann-Whitney U test, P = 0.000 |
Acute admission | 66 (57.9) | 572 (54.1) | Chi-square test, P = 0.441 | |
| Â | Â | 309 (53.9) | 263 (54.3) | Chi-square test, P = 0.893 |
Number of monitored days per admission | 3.0 (2, 5) | 3.0 (2, 6) | Mann-Whitney U test, P = 0.559 | |
| Â | Â | 3.0 (2, 6) | 3.0 (2, 6) | Mann-Whitney U test, P = 0.824 |