Table 2.

Risk Factors of 1-Year Mortality, 30-day Readmission, and 90-day Readmission in Patients With Primary Acute Fracture Hemiarthroplasty (Generalized Estimating Equation Multivariable Models).

		Death Within 1 Year				30-Day Readmit				90-Day Readmit
	Odds Ratio	95% LB	95% UB	P	Odds Ratio	95% LB	95% UB	P	Odds Ratio	95% LB	95% UB	P
Gender Reference group: Males	0.63	0.29	1.38	.250	0.53	0.29	0.96	.036	0.52	0.31	0.85	.010
ASA score Reference group <3	2.37	1.05	5.32	.037	1.39	0.78	2.46	.261	1.79	1.04	3.09	.035
DiabetesReference group: No	0.98	0.51	1.87	.954	0.99	0.60	1.64	.965	0.82	0.51	1.31	.407
Age categories Referencegroup: [27.9, 55.9) a
[55.9, 61.2)	4.67	0.47	46.37	.189	– b	–	–	–	2.18	0.58	8.14	.245
[61.2, 64.1)	0.98	0.06	17.48	.992	3.27	0.80	13.36	.100	1.99	0.50	7.89	.330
[64.1, 68.3)	1.02	0.06	17.85	.988	4.2	1.13	15.68	.033	2.46	0.71	8.53	.157
[68.3, 71.7)	1.88	0.15	23.64	.626	3.97	1.06	14.96	.041	2.28	0.68	7.66	.181
[71.7, 75.1)	4.95	0.51	48.05	.168	4.77	1.19	19.02	.027	3.37	0.92	12.28	.066
[75.1, 77.9)	1.8	0.16	20.67	.638	3.33	0.83	13.30	.089	3.52	0.93	13.32	.064
[77.9, 81.0)	7.43	0.73	75.45	.090	4.88	1.29	18.41	.019	3.83	1.17	12.55	.027
[81.0, 85.3)	5.02	0.54	46.4	.155	4.86	1.31	18.02	.018	3.00	0.87	10.33	.081
[85.3, 101.2]	12.91	1.44	115.93	.022	7.04	2.00	24.74	.002	5.81	1.59	21.20	.008

Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; LB, lower bound; UP, upper bound.

Square bracket “[” indicates value inclusive and parentheses “)” indicates value exclusive.

^aThe reference group for the 30-day readmit models is [27.9, 61.2), because the original reference group had 0 events.

^bNo estimates because there are no events in this group.