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Table 3 Adjusted odds ratios (AOR) for death within 30 days of surgery

From: What impact do assumptions about missing data have on conclusions? A practical sensitivity analysis for a cancer survival registry

 

Multiple Imputation (MAR)

Multiple Imputation (MNAR)

Characteristic

AOR

(95% CI)

p value

AOR

(95% CI)

p value

Age at diagnosis (per 10 years)

2.12

(2.07–2.17)

<0.001

2.08

(2.03–2.13)

<0.001

Year of diagnosis (per advancing year

0.97

(0.97–0.98)

<0.001

0.98

(0.97–0.98)

<0.001

Sex

Female

1.00

  

1.00

  

Male

1.21

(1.16–1.26)

<0.001

1.21

(1.16–1.26)

<0.001

Operation

Elective

1.00

  

1.00

  

Emergency

2.67

(2.53–2.82)

<0.001

2.76

(2.61–2.91)

<0.001

Dukes’ stage at diagnosis

A

1.00

  

1.00

  

B

1.24

(1.14–1.35)

<0.001

1.15

(1.04–1.26)

0.005

C

1.54

(1.42–1.68)

<0.001

1.29

(1.18–1.42)

<0.001

D

2.48

(2.25–2.73)

<0.001

1.82

(1.66–2.00)

<0.001

IMD income category

1 (Most affluent)

1.00

  

1.00

  

2

1.03

(0.96–1.10)

0.429

1.03

(0.96–1.10)

0.417

3

1.11

(1.04–1.19)

<0.001

1.12

(1.04–1.19)

0.002

4

1.21

(1.13–1.30)

<0.001

1.22

(1.14–1.30)

<0.001

5 (Most deprived)

1.32

(1.23–1.42)

<0.001

1.32

(1.23–1.42)

<0.001

Cancer site

Colon

1.00

  

1.00

  

Rectosigmoid

0.88

(0.82–0.96)

0.003

0.88

(0.82–0.96)

0.003

Rectum

0.94

(0.89–0.99)

0.018

0.91

(0.86–0.96)

0.001

Charlson comorbidity score

0

1.00

  

1.00

  

1

2.05

(1.94–2.17)

<0.001

2.06

(1.95–2.19)

<0.001

2

2.43

(2.25–2.62)

<0.001

2.42

(2.24–2.61)

<0.001

≥3

4.39

(3.99–4.83)

<0.001

4.35

(3.96–4.79)

<0.001