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Table 4 Logistic regression analysis for 1:1 matching between patients with adverse outcomes and the control group

From: Impact of diagnostic errors on adverse outcomes: learning from emergency department revisits with repeat CT or MRI

  No. of total patients (no. of adverse outcomes) Odds ratio (95% CI) p
Study group Matched control group
Total RVRIs
All diagnostic errors 195 (59) 195 (26) 2.82 (1.72–4.63)  < .001*
Radiologic errors 107 (43) 107 (17) 3.56 (1.90–6.66)  < .001*
Clinician errors 88 (16) 88 (9) 1.95 (0.82–4.62) .13
Early RVRIs
(≤ 72 h)
All diagnostic errors 120 (38) 120 (13) 3.81 (1.94–7.50)  < .001*
Radiologic errors 64 (26) 64 (10) 3.70 (1.65–8.27) .001*
Clinician errors 56 (12) 56 (3) 4.82 (1.20–19.43) .03*
Late RVRIs
(> 72 h–7 days)
All diagnostic errors 75 (21) 75 (13) 1.86 (0.89–3.89) .10
Radiologic errors 43 (17) 43 (7) 3.36 (1.24–9.14) .02*
Clinician errors 32 (4) 32 (6) 0.62 (0.20–1.96) .41
  1. The two groups were matched for age (± 5 years), sex, revisit timing, comorbidity (malignancy), and six disease categories (neurologic, digestive, neoplasm, respiratory, circulatory, and other diseases). In the matched set, binary outcomes were compared using logit models with generalized estimating equations, which accounted for the clustering of matched pairs.
  2. RVRIs, Revisits with repeat imaging; CI, confidence interval
  3. *p values < .05.