Table 3 Adjusteda hazard ratios of death (and 95% confidence intervals) within 3 years of diagnosis

From: Benefits of specialisation in the management of pancreatic cancer: results of a Scottish population-based study

 

All patients

Surgical patientsb

Factor

HR (95% CI)

P-value

HR (95% CI)

P-value

Year of diagnosis

  

No statistically significant differences

 

 1993

1.00

   

 1994

0.98 (0.87, 1.11)

0.779

  

 1995

0.94 (0.83, 1.06)

0.309

  

 1996

0.81 (0.72, 0.92)

0.001

  

 1997

0.88 (0.78, 1.00)

0.043

  

Age groups

    

 0–49

1.00

 

1.00

 

 50–59

0.95 (0.75, 1.19)

0.648

1.00 (0.69, 1.46)

0.982

 60–69

1.14 (0.92, 1.41)

0.241

1.26 (0.88, 1.78)

0.205

 70–79

1.14 (0.92, 1.41)

0.245

1.41 (0.99, 2.02)

0.06

80

1.41 (1.12, 1.76)

0.003

1.83 (1.22, 2.75)

0.003

Sex

  

No statistically significant differences

 

 Male

1.00

   

 Female

0.92 (0.85, 1.00)

0.042

  

Scottish co-morbidity index b

    

 None

1.00

 

1.00

 

 1 condition

1.24 (1.12, 1.37)

<0.001

1.09 (0.91, 1.32)

0.351

2 conditions

1.25 (1.09, 1.42)

0.001

1.51 (1.12, 2.05)

0.007

Bed-days co-morbidity index (in 6 months prior to diagnosis) b

  

No statistically significant differences

 

 None

1.00

   

 1–4 days

1.11 (0.94, 1.30)

0.226

  

 5–10 days

1.20 (1.03, 1.39)

0.017

  

11 days

1.33 (1.17, 1.50)

<0.001

  

Tumour subsite

    

 Head of pancreas

1.00

 

1.00

 

 Body of pancreas

1.01 (0.83, 1.24)

0.918

1.19 (0.78, 1.83)

0.425

 Tail of pancreas

0.97 (0.74, 1.28)

0.849

1.18 (0.55, 2.54)

0.665

 Other

1.12 (0.81, 1.55)

0.499

0.86 (0.48, 1.52)

0.595

 Unspecified

1.20 (1.10, 1.30)

<0.001

1.34 (1.15, 1.56)

<0.001

Tumour morphology

No statistically significant differences

   

 Neoplasm, not otherwise specified

  

1.00

 

 Carcinoma, not otherwise specified

  

0.74 (0.51, 1.07)

0.107

 Adenocarcinoma, not otherwise specified

  

0.62 (0.42, 0.93)

0.022

 Mucin-producing adenocarcinoma

  

0.48 (0.27, 0.85)

0.011

 Other

  

0.39 (0.23, 0.66)

<0.001

Microscopically verified

No statistically significant differences

   

 No

  

1.00

 

 Yes

  

0.68 (0.55, 0.85)

0.001

Metastases within 4 weeks of diagnosis b

    

 No

1.00

 

1.00

 

 Yes

1.92 (1.76, 2.10)

<0.001

1.93 (1.60, 2.33)

<0.001

Surgical resection b

  

Not applicable

 

 No

1.00

   

 Yes

0.38 (0.31, 0.46)

<0.001

  

Other surgery b

  

Not applicable

 

 No

1.00

   

 Yes

0.74 (0.67, 0.81)

<0.001

  

Biliary stent b

    

 No

1.00

 

1.00

 

 Yes

0.72 (0.65, 0.79)

<0.001

0.70 (0.57, 0.85)

<0.001

Chemotherapy b

  

No statistically significant differences

 

 No

1.00

   

 Yes

0.59 (0.50, 0.71)

<0.001

  

Caseload of main treating consultant b

  

No statistically significant differences

 

 1 case

1.00

   

 2–4 cases

0.87 (0.78, 0.97)

0.013

  

 5–9 cases

0.90 (0.80, 1.02)

0.088

  

10 cases

0.85 (0.77, 0.95)

0.003

  

Specialty of main treating consultant b

No statistically significant differences

   

 Nonspecialist

  

1.00

 

 Specialist

  

0.63 (0.50, 0.78)

<0.001

 Clinician with an interest in the pancreas

  

0.63 (0.48, 0.82)

0.001

  1. For each model (all patients, surgical patients) the results for the factors shown are adjusted for all the other statistically significant factors in the table.
  2. bInformation derived from linked hospital discharge records does not include outpatient diagnostic or procedural information.