Table 3.

Multivariable Poisson regression analysis of potential risk factors influencing the risk of in-hospital complications

Potential risk factor	RR (95% CI)
Cemented/hybrid THA	1.1 (0.9–1.3)
Pharmacologically treated cardiovascular disease	1.5 (1.2–1.8)
Pharmacologically treated pulmonary disease	1.4 (1.1–1.8)
History of venous thromboembolism	1.6 (1.2–2.0)
BMI ≥ 35	2.1 (1.5–2.9)
Use of mobility aid	2.1 (1.8–2.6)
Age (per 10 years)	2.1 (1.8–2.5)

RR: Relative risk; BMI: body mass index.