Fig. 3From: Patients’ risk factors for periprosthetic joint infection in primary total hip arthroplasty: a meta-analysis of 40 studiesForest plots of the meta-analysis of non-modifiable risk factors, including gender (A) and age (B) as risk factors for PJI following THA. Subgroup analysis for gender with different study design (C) were further shown to identify the possible association between gender with PJIBack to article page