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Table 6 Crude and adjusted associations for age/10, sex, CCI and FCI with the 90-day risk of an adverse event (excluding pain) across all procedures (Panel A) and for only THA and TKA procedures (Panel B) using modified Poisson regression modeling

From: A retrospective cohort study of adverse events in patients undergoing orthopaedic surgery

Predictors

Risk Ratio

95% CI

p-value

Panel A: All Procedures (N = 1192)

 Crude Associations

  Age (decade)

1.03

0.99–1.07

0.12

  Sex

1.02

0.81–1.29

0.85

  CCI score (per 1 point)

1.10

1.02–1.18

0.01

  FCI score (per 1 point)

1.19

1.13–1.25

<0.001

 Adjusted Models

  Model 1

  Age (decade)

1.03

0.99–1.07

0.13

  Sex

1.04

0.82–1.30

0.76

  CCI score (per 1 point)

1.10

1.01–1.18

0.02

  Model 2

  Age (decade)

1.02

0.98–1.06

0.28

  Sex

1.03

0.82–1.30

0.80

  FCI score (per 1 point)

1.19

1.13–1.25

<0.001

Panel B: THA and TKA Procedures Only (N = 413)

 Crude Associations

  Age (decade)

1.12

0.96–1.31

0.15

  Sex

1.23

1.01–1.50

0.04

  CCI score (per 1 point)

1.09

0.98–1.20

0.104

  FCI score (per 1 point)

1.14

1.07–1.22

<0.001

 Adjusted Models

  Model 1

  Age (decade)

1.12

0.97–1.28

0.12

  Sex

1.22

0.98–1.51

0.07

  CCI score (per 1 point)

1.07

0.99–1.15

0.07

  Model 2

  Age (decade)

1.11

0.96–1.27

0.16

  Sex

1.23

1.01–1.51

0.04

  FCI score (per 1 point)

1.13

1.06–1.21

<0.001

  1. 1. For the variable sex, female was coded as a 0 and male as a 1
  2. CCI Charlson comorbidity index, FCI functional comorbidity index, THA total hip arthroplasty, TKA total knee arthroplasty