Table 4. Comparing outcome variables between pre and post intervention group.
| Variables | Pre-a(n=79) Mean (SD) | Post-b(n=77) Mean (SD) | Mean difference (95% CI) | t statistic (df) | p-value |
|---|---|---|---|---|---|
| Timeliness | 1.83 (1.55) | 0.21 (0.59) | 1.63 (1.26: 2.00) | 8.72 (100.87)c | 0.000c |
| Duration of IV antibiotics | 4.05 (1.58) | 2.81 (1.17) | 1.23 (0.79:1.67) | 5.54 (143.39)c | 0.000c |
| Mean length of hospital stay | 5.53 (3.22) | 4.09 (1.73) | 1.44 (0.62:2.26) | 3.49 (120.57)c | 0.001c |
| Antibiotics cost savings | 13.10 (53.76)d | 21.96 (23.23)e | - | -2.278c | 0.025f |
a
pre-intervention;
b
post-intervention;
c
independent t test;
d
median and interquartile range;
e
z statistic;
f
Mann-Whitney test