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Insights into Imaging

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.
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