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Table 2 Comparison of meta-analysis results between fixed effect model and random effect model

From: Risk factors for mortality in elderly haemodialysis patients: a systematic review and meta-analysis

Risk factors Fixed effect model [OR(95%CI)] Random effect model [OR(95%CI)]
Age 1.12 (1.10–1.14) 1.43 (1.22–1.68)
CVD 1.07 (0.83–1.39) 1.20 (1.00–1.44)
DM 1.19 (1.06–1.33) 1.19 (1.06–1.33)
Vascular access CVC vs. AV 1.53 (1.44–1.62) 1.55 (1.38–1.75)
Early dialysis initiation 1.11 (1.08–1.14) 1.18 (1.01–1.37)
BMI>25 0.94 (0.92–0.96) 0.94 (0.90–0.97)
Functional impairment 1.21 (1.12–1.31) 1.55 (1.16–2.07)
Cognitive impairment 1.46 (1.32–1.62) 1.46 (1.32–1.62)
Frailty 1.43 (1.31–1.56) 1.53 (1.29–1.83)
Falls 1.14 (1.06–1.23) 1.14 (1.06–1.23)