Skip to main content

Table 2 Modifiable risk factors for periprosthetic joint infection and the outcomes of meta-analysis

From: Patients’ risk factors for periprosthetic joint infection in primary total hip arthroplasty: a meta-analysis of 40 studies

Comparisons Number of studies RR (95% CI) Heterogeneity
I2, p-value*
1. BMI (kg/m2) 20 2.40 (2.01–2.85) 42.4%, 0.024
BMI ≥30 vs. BMI < 30 10 2.01 (1.83–2.22) 0.0%, 0.495
BMI ≥35 vs. BMI < 35 4 2.46 (1.73–3.51) 0.0%, 0.796
BMI ≥40 vs. BMI < 40 6 2.99 (1.59–5.61) 74.0%, 0.002
2. Smoke vs. non 6 1.24 (0.85–1.82) 0.0%, 0.756
3. Alcohol abuse vs. non 3 1.69 (0.76–3.80) 80.0%, 0.007