Risk factors for postoperative medical morbidity and 3-month mortality in elderly patients with hip fracture following hip arthroplasty during COVID-19 pandemic

Table 2 Comparison of baseline characteristics between patients with no complications and complications groups

	No complications group (856)	Complications group (240)	OR (95% CI)	P*
Age, y (mean SD)	76.18 ± 6.39	76.01 ± 6.10		0.588
Female, n (%)	438 (51.17)	118 (49.17)	0.92 (0.69–1.23)	0.584
BMI ≥ 24 kg/m, n (%)	264 (30.84)	66 (27.50)	0.85 (0.62–1.17)	0.319
Current smoking, n (%)	241 (28.15)	57 (23.75)	0.80 (0.57–1.11)	0.175
Hypertension, n (%)	272 (31.78)	80 (33.33)	1.07 (0.79–1.46)	0.648
Diabetes, n (%)	239 (27.92)	62 (25.83)	0.90 (0.65–1.25)	0.522
Hyperlipidemia, n (%)	414 (43.86)	119 (49.58)	1.05 (0.79–1.40)	0.738
Dementia, n (%)	25 (2.92)	16 (6.67)	2.37 (1.25–4.52)	0.007
Heart disease, n (%)	81 (9.46)	24 (10.00)	1.06 (0.66–1.72)	0.803
Chronic renal disease, n (%)	69 (8.06)	19 (7.92)	0.89 (0.48–1.62)	0.942
Chronic liver disease, n (%)	40 (4.67)	14 (5.83)	1.26 (0.68–2.36)	0.463
COPD, n (%)	57 (6.66)	46 (19.17)	3.32 (1.19–5.05)	< 0.001
Fracture to operation duration, d (mean SD)	6.60 ± 2.97	9.30 ± 4.41		< 0.001
ALB, g/l (mean SD)	34.06 ± 4.99	33.84 ± 4.53		0.465
RBC, g/l (mean SD)	135.06 ± 25.98	136.77 ± 26.34		0.362
Operating times, min (mean SD)	80.57 ± 14.29	79.77 ± 14.86		0.420

Bold indicates P values less than 0.05
*Comparison between no complications and complications groups. The data are presented as numbers (%) or mean values (± standard deviation). Pearson χ² tests were used for categorical variables. Student’s t tests were used to compare normally distributed variables. Mann–Whitney U tests were used to compare nonnormally distributed variables

ISSN: 1749-799X