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Table 2 Readmissions within 6 months by reason for index hospital admission

From: All-cause hospitalizations for inflammatory bowel diseases: Can the reason for admission provide information on inpatient resource use? A study from a large veteran affairs hospital

Item IBD flare or complication (n = 41) Other type of admission (n = 70)
Number of readmissions in 6 months [n (%)]
 0 29 (70.7) 55 (78.6)
 1 7 (17.1) 12 (17.1)
 2 3 (7.3) 2 (2.9)
 3 1 (2.4) 1 (1.4)
 4 1 (2.4) 0
Median time to first readmission in months (IQR) 0.6 (0.3–3.1) 1.3 (0.3–4.0)
Number of patients readmitted [n (%)] 12 (29.3) 15 (21.4)
Total number of readmissions (n) 20 19
Total person-months a 242 414
Incidence rate of readmission (95 % CI) per 100 person-months b 8.3 (5.2–3.1) 4.6 (2.8–0.3)
  1. a Calculated by multiplying n to 5.92 (as data was collected in number of days)
  2. b Rate ratio is calculated as the ratio between the two incidence rates of readmission per 100 person-months
  3. IQR interquartile range, CI confidence interval