Effect of integrated management bundle on 1-year overall survival outcomes and perioperative outcomes in super elderly patients aged 90 and over with hip fracture: non-concurrent cohort study

Table 7 Cox proportional hazards regression model for overall survival

Characteristics	Univariable analysis		Multivariable analysis
Characteristics	HR (95% CI)	P value	HR (95% CI)	P value
Sex
Male	Reference	0.133	Reference	0.463
Female	0.638 (0.355–1.146)	0.133	0.798 (0.438–1.457)	0.463
Age group
90–94	Reference	0.562	Reference	0.728
≥ 95	1.238 (0.601–2.548)	0.562	1.139 (0.549–2.362)	0.728
mECM
< 6	Reference	0.018*	Reference	0.030*
≥ 6	1.976 (1.125–3.469)	0.018*	1.940 (1.067–3.525)	0.030*
ASA score
≤ 2	Reference	0.035*	Reference	0.024*
> 2	2.060(1.053–4.029)	0.035*	2.281 (1.113–4.678)	0.024*
Fracture type
Femoral neck	Reference	0.148	Reference	0.193
Intertrochanter	0.657 (0.371–1.162)	0.148	0.660 (0.353–1.233)	0.193
Management modality
Multidisciplinary management	Reference	0.018*	Reference	0.007*
Integrated management bundle	0.487 (0.268–0.883)	0.018*	0.430 (0.233–0.791)	0.007*
Admission delay
< 7d	Reference	0.487	Reference	0.749
≥ 7d	0.696 (0.250–1.934)	0.487	0.839 (0.287–2.453)	0.749
Anesthesia type
General	Reference	0.558	Reference	0.530
Regional	1.183 (0.674–2.075)	0.558	1.200 (0.679–2.119)	0.530
Hb group at admission
< 10 g	Reference	0.353	Reference	0.602
≥ 10 g	1311(0.740–2.323)	0.353	0.843 (0.442–1.605)	0.602

Notes: *P < 0.05, statistical significance. ASA American Society of Anesthesiologists, mECM modified Elixhauser’s Comorbidity Measure

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