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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