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Table 2 A cox proportional regression model of mortality risk in older patients receiving hip fracture surgery with and without postoperative hyperactive delirium

From: Long-term mortality impact of postoperative hyperactive delirium in older hip fracture surgery patients

 

Crude HR(95% CI)

P-value

Adjusted HR* (95% CI)

P-value

 

Model 1: Before propensity scores patching

No Postoperative hyperactive delirium (ref.)

1.00

  

1.00

  

Postoperative hyperactive delirium

2.93

(2.80, 3.08)

< 0.0001

1.72

(1.64, 1.81)

< 0.0001

 

Model 2: After propensity scores patching

No Postoperative hyperactive delirium (ref.)

1.00

     

Postoperative hyperactive delirium

1.42

(1.32, 1.52)

< 0.0001

1.62

(1.51, 1.74)

< 0.0001

  1. Abbreviations: HR, hazard ratios; CI, confidence interval
  2. Adjustment of age, sex, income levels, urbanization, elective status, ASA physical status, types of anesthesia, duration of anesthesia, coexisting comorbidity, and CCI scores
  3. Statistical test: The Cox proportional hazards model with robust sandwich estimators was used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) while accounting for clustering within matched sets