Table 1 Characteristics of patients with suspected infectious diarrhea evaluated before and after introduction of FilmArray GI PCR
Characteristic | Overall | FilmArray group | Pre-FilmArray group | P-value* |
|---|---|---|---|---|
Total | ||||
N | 170 | 129 | 41 | – |
Sex | ||||
Male – N (%) | 79 (46.5%) | 65 (50.4%) | 14 (34.1%) | 0.0120 |
Age | ||||
Years – mean ± std. dev. | 47.4 ± 18.4 | 45.6 ± 18.4 | 56.7 ± 17.9 | 0.0011 |
Prior history of CDI | ||||
Prior C. difficile documented in chart – N (%) | 22 (12.9%) | 13 (10.1%) | 9 (22.0%) | < 0.0001 |
CDI diagnosis (by ICD-9/ICD-10 code) | ||||
Clostridium difficile enteritis/colitis – N (%) | 102 (60.0%) | 68 (52.7%) | 34 (82.9%) | < 0.0001 |
Time to overall disposition from ED | ||||
Hours – median [Q1,Q3] | 7 [5,10] | 7 [5.5,10] | 7 [4,10.5] | 0.6052 |
Time to discharge from ED | ||||
Hours – median [Q1,Q3] | 7 [5,10] | 7.5 [5,10] | 7 [6,15] | 0.5618 |
Time to admission to hospital | ||||
Hours – median [Q1,Q3] | 7 [5,10] | 7 [6,10] | 7 [4,10] | 0.4542 |
Hospital admission | ||||
Admitted from ED to hospital – N (%) | 117 (68.8%) | 81 (62.8%) | 36 (87.8%) | < 0.0001 |
Hospital length of stay (LOS) | ||||
Days – median [Q1,Q3] | 4 [2,8] | 3 [2,6] | 7.5 [4,10] | 0.0002 |
Day on which empiric antibiotics started | ||||
Days – median [Q1,Q3] | 1 [1,1] | 1 [1,1] | 1 [1,1] | 0.3298 |
Day on which optimal antibiotics started | ||||
Days – median [Q1,Q3] | 2 [1,2] | 1 [1,2] | 2 [1,3] | 0.0117 |
Optimal antibiotics prescribed on first try | ||||
Discharged with initial antibiotics – N (%) | 70 (41.2%) | 61 (47.3%) | 9 (22.0%) | < 0.0001 |
Discharged without antibiotics | ||||
Antibiotics not prescribed or discontinued – N (%) | 20 (11.8%) | 18 (14.0%) | 2 (4.9%) | < 0.0001 |