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Table 4 Comparison of physician management and acute cystitis decision aid recommendations management: validation cohort of women with acute cystitis, 2009–11

From: External validation study of a clinical decision aid to reduce unnecessary antibiotic prescriptions in women with acute cystitis

Outcome Family Physicians Cystitis Decision Aid Absolute Difference (MD - Aid) p-value*
1. Diagnosis
 Sensitivity 239/245 (97.6%) 202/245 (82.5%) + 15.1% <0.0001
 Specificity 10/152 (6.6%) 54/152 (35.5%) - 28.9% <0.0001
2. Management
 Urine Culture 351/397 (88.4%) 97/397 (24.4%) + 64.0% <0.0001
 Antibiotics 381/397 (96.0%) 300/397 (75.6%) + 20.4% <0.0001
 Unnecessary Antibiotics** 142/397 (35.8%) 98/397 (24.7%) + 11.1% 0.001
  1. *McNemar’s test
  2. **antibiotic prescription issued and subsequent urine culture was negative for bacteria
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