Table 4.

Readmissions rates for SCD patients with ONFH after hip surgery, California, 1991-2013

Variable	N	%
All	308	100.0
Readmission after hip surgery (combined)
Within 30 d	83	26.9
Within 60 d	117	38.0
Within 90 d	148	48.1
Readmission for VTE after hip surgery (combined)
Within 30 d	NA
Within 60 d	2	0.6
Within 90 d	2	0.6
Readmission for SCD crisis after hip surgery (combined)
Within 30 d	42	13.6
Within 60 d	66	21.4
Within 90 d	85	27.6
Readmission for infection after hip surgery (combined)
Within 30 d	24	7.8
Within 60 d	31	10.1
Within 90 d	36	11.7
Readmission for device malfunction after hip surgery (combined)
Within 30 d	11	3.6
Within 60 d	11	3.6
Within 90 d	11	3.6
Readmission after hip surgery (PDD)
Within 30 d	73	23.7
Within 60 d	104	33.8
Within 90 d	133	43.2
Readmission for VTE after hip surgery (PDD)
Within 30 d	NA
Within 60 d	2	0.6
Within 90 d	2	0.6
Readmission for SCD crisis after hip surgery (PDD)
Within 30 d	44	14.3
Within 60 d	66	21.4
Within 90 d	91	29.5
Readmission for infection after hip surgery (PDD)
Within 30 d	23	7.5
Within 60 d	33	10.7
Within 90 d	38	12.3
Readmission for device malfunction after hip surgery (PDD)
Within 30 d	11	3.6
Within 60 d	11	3.6
Within 90 d	11	3.6
Within 90 d	18	5.8

Emergency department (ED) data are not shown. Combined = PDD + ED.

NA, not applicable.