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Table 4 Multilevel logistics regression on factors for avoidable readmissions on all unplanned readmissions

From: Avoidable readmission in Hong Kong - system, clinician, patient or social factor?

Factor OR 95.0% C.I.
Same principal diagnosis in both discharge and readmission episode 3.41*** (2.20 - 5.30)
No. of attendance to public outpatient clinics and A&E departments in the past 12 months 0.99 (0.96 - 1.01)
No. of hospitalization in the past 12 months 1.01 (0.96 - 1.07)
Use of sub acute & community services 1.03 (0.61 - 1.75)
Length of stay (in days) of previous linked episode that induce the readmission 0.99 (0.98 - 1.01)
Time (in days) elapsed between discharge from index episode and readmission 0.97** (0.95 - 0.99)
Fee was not paid by public assistance 1.19 (0.81 - 1.74)
Transferred to rehabilitation hospital 0.79 (0.45 - 1.39)
No. of drugs taken on previous discharge 1.03 (0.97 - 1.09)
  1. Notes:
  2. (i) No. of hospital = 14; No. of patients within each hospital ranged from 19-66
  3. (ii) Intra class correlation = 9.9% implying the correlation of patients within hospital is small
  4. (iii) Regression adjusted for age, gender and principal diagnosis of previous discharge
  5. (iv) ** p-value < 0.01, *** p-value < 0.001, OR refers to Odd Ratio, CI refers to Confidence Interval