TABLE 4

Reasons for 15-Day Readmissions

Main Reason for ReadmissionReadmission Interval, n (%)Patient Subgroup, n (%)
0–7 d (N = 1514)8–15 d (N = 1032)0–15 d (N = 2546)Acute (N = 559)Chronic (N = 1987)
Ongoing disease process; common, known treatment adverse effects; recurrence of same; or closely related principal diagnosis734 (48.5)410 (39.7)1144 (44.9)309 (55.3)835 (42.0)
Planned273 (18.0)252 (24.4)525 (20.6)18 (3.2)507 (25.5)
Complication of surgery or procedure185 (12.2)104 (10.1)289 (11.4)67 (12.0)222 (11.2)
    Subset: postoperative or postprocedure infection, or wound disruption66 (4.4)51 (4.9)117 (4.6)28 (5.0)89 (4.5)
    Complication of device87 (5.7)78 (7.6)165 (6.5)7 (1.2)158 (8.0)
        Subset: central venous catheter infection68 (4.5)57 (5.5)125 (4.9)3 (0.5)122 (6.1)
Unrelated (new illness, trauma, accident)83 (5.5)112 (10.9)195 (7.7)101 (18.1)94 (4.7)
Inaccurate initial diagnosis, delay in diagnosisa26 (1.7)5 (0.5)31 (1.2)12 (2.1)19 (1.0)
Admission for problem/complication from outpatient procedure, care, equipment20 (1.3)15 (1.5)35 (1.4)8 (1.4)27 (1.4)
Medication complications18 (1.2)16 (1.5)34 (1.3)6 (1.1)28 (1.4)
Other related nonsurgical infectious conditions17 (1.1)6 (0.6)23 (0.9)7 (1.3)16 (0.8)
Other medical complications8 (0.53)8 (0.78)16 (0.63)3 (0.5)13 (0.7)
System/process problemb8 (0.53)2 (0.19)10 (0.39)1 (0.2)9 (0.4)
All other reasons55 (3.63)24 (2.33)79 (3.10)20 (3.6)59 (3.0)
  • a Readmissions for diagnoses that were present at the time of the previous admission but were not the principle diagnosis and were diagnosed only on the subsequent readmission.

  • b Readmissions occurred because of laboratory errors or scheduling problems.