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Table 4 Estimation of the average treatment effect and multivariable Cox regression model among patients with hgb postoperative day three ≤ 6.5 mmol/L stratified by ABT and IV Monofer and ABT (30-day follow-up), n=78. The multivariable analysis is standardized for covariates

From: Association between intravenous iron therapy and short-term mortality risk in older patients undergoing hip fracture surgery: an observational study

ATE analysis Multivariable Cox regression model
  Average risk CI (95%) Hazard ratio CI (95%) p value
ABT 0.220 [0.039–0.400] 1 Reference  
IV Monofer and ABT 0.072 [0.009–0.135] 1.34 [0.269–6.653] 0.7215