Table 2 Adjusted excess hazard ratio (EHR) and 95% confidence intervals (CI) at 1 year and 5 years after diagnosis, by prognostic factor: small intestinal malignancy, England and Wales, adults diagnosed 1971–1990 and followed up to 1995

From: Survival trends for small intestinal cancer in England and Wales, 1971–1990: national population-based study

 

Adjusted excess hazard ratio (EHR) a

 

1 year

5 years

Period of diagnosis

EHR

95% CI

EHR

95% CI

 1971–1974

1.00

1.00

 1975–1978

0.87

0.77–0.99

0.87

0.80–1.00

 1979–1982

0.84

0.74–0.96

0.89

0.83–1.03

 1983–1986

0.82

0.72–0.93

0.86

0.80–0.99

 1987–1990

0.65

0.57–0.74

0.74

0.69–0.86

 Trendb

0.91

0.89–0.94

0.94

0.92–0.96

Subsite

 Duodenum

1.00

1.00

 Jejunum

0.59

0.50–0.71

0.65

0.57–0.75

 Ileum

0.62

0.53–0.72

0.65

0.57–0.73

 Other

1.11

0.81–1.54

1.12

0.86–1.47

 Unspecified

0.86

0.76–0.97

0.78

0.70–0.86

Morphology

 Adenocarcinoma

1.00

1.00

 Endocrine tumour

0.48

0.41–0.56

0.48

0.42–0.54

 Sarcoma

0.72

0.61–0.83

0.91

0.81–1.02

 Other

1.92

1.76–2.09

1.61

1.49–1.73

Sex

 Male

1.00

1.00

 Female

0.87

0.81–0.94

0.92

0.86–0.98

Age at diagnosis (years)

 15–59

1.00

1.00

 60–69

1.22

1.10–1.36

1.19

1.09–1.29

 70–79

1.58

1.43–1.76

1.42

1.31–1.55

 80–99

2.46

2.16–2.79

2.13

1.91–2.39

Deprivation

 Affluent

1.00

1.00

 2

1.01

0.89–1.14

0.97

0.88–1.07

 3

1.04

0.92–1.17

0.97

0.88–1.08

 4

1.24

1.09–1.40

1.11

1.00–1.23

 Deprived

1.33

1.17–1.52

1.22

1.09–1.36

  1. aAdjusted for each covariate in the table by stepwise addition, with likelihood ratio test of the significance of the variable on the goodness of fit of the model.
  2. bRatio of the excess hazard of death between successive calendar periods of diagnosis, after adjustment for other covariates in the Table.