Table 4.
Potential diagnostic shift post intervention as evidenced by weighted mean percentage (and 95% CI) of acute respiratory infection (ARI) episodes for which antibiotics are inappropriate out of the total number of ARI episodes
| Time period | Episodes among adult patients | Episodes among pediatric patients | ||
| Intervention practices (n=9) | Control practices (n=61) | Intervention practices (n=9) | Control practices (n=61) | |
| 4th Quarter 2009 | 59.4% (of n=5055 ARI episodes) (52.2% to 66.6%) | 62.4% (of n=29 355 ARI episodes) (59.4% to 65.4%) | 51.0% (of n=2882 ARI episodes) (41.7% to 60.4%) | 66.4% (of n=11 480 ARI episodes) (63.4% to 69.3%) |
| 1st Quarter 2010 | 61.7% (of n=5669 ARI episodes) (56.5% to 66.8%) | 58.1% (of n=31 225 ARI episodes) (55.0% to 61.3%) | 51.4% (of n=3379 ARI episodes) (43.2% to 59.5%) | 57.8% (of n=12 266 ARI episodes) (54.7% to 61.0%) |
| 2nd Quarter 2010 | 60.3% (of n=3799 ARI episodes) (55.3% to 65.3%) | 58.8% (of n=22 067 ARI episodes) (55.7% to 62.0%) | 48.7% (of n=1891 ARI episodes) (39.9% to 57.4%) | 57.9% (of n=7616 ARI episodes) (54.4% to 61.4%) |
| 3rd Quarter 2010 | 60.7% (of n=3091 ARI episodes) (54.1% to 67.3%) | 60.4% (of n=18 252 ARI episodes) (57.4% to 63.5%) | 52.9% (of n=1602 ARI episodes) (41.6% to 64.3%) | 60.5% (of n=6265 ARI episodes) (56.6% to 64.3%) |
| 4th Quarter 2010 | 60.7% (of n=4738 ARI episodes) (56.2% to 65.2%) | 59.6% (of n=28 181 ARI episodes) (55.8% to 62.3%) | 59.7% (of n=2490 ARI episodes) (51.6% to 67.8%) | 60.4% (of n=9889 ARI episodes) (56.6% to 64.2%) |
| 1st Quarter 2011 | 60.5% (of n=6070 ARI episodes) (56.4% to 64.6%) | 58.3% (of n=33 256 ARI episodes) (55.1% to 61.5%) | 58.4% (of n=3537 ARI episodes) (51.0% to 65.8%) | 57.3% (of n=13 302 ARI episodes) (53.8% to 60.8%) |
| Adjusted weighted mean change over time | +0.4% | −0.2% | +8.6%* | −5.0% |
*
p<0.0001 in comparison with adjusted weighted mean change in control practices.