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Table 6 Logistic regression modelling of symptom recognition of lung cancer on demographic predictors in a sample of residents in NSW, Australia, 2012 (n=1000)

From: Knowledge of the signs and symptoms and risk factors of lung cancer in Australia: mixed methods study

     

Failure to recognize any symptom

   

Failure to recognise cough

 

All participants

Smokers only

All participants

Smokers only

 

N

Odds ratio

95 % CI

p value

Odds ratio

95 % CI

p value

Odds ratio

95 % CI

p value

Odds ratio

95 % CI

p value

Age group:

             

 65 years and older

677

1

  

1

  

1

  

1

  

 40-64 years

323

0.55

0.33-0.91

0.02

0.27

0.15-0.52

0.000

0.85

0.59-1.21

0.4

0.63

0.40-0.98

0.05

Sex:

             

 Female

544

1

  

1

  

1

  

1

  

 Male

456

2.07

1.20-3.59

0.009

1.70

0.93-3.09

0.08

1.59

1.11-2.27

0.01

1.48

0.97-2.27

0.07

Smoking status (2 categories):

             

 Never smoked

578

1

  

-

-

-

1

  

-

- -

 

 Ever smoked daily or weekly

422

0.76

0.45-1.27

0.7

   

1.04

0.73-1.47

0.8

  

0.7

Index of relative socio-economic disadvantage:

             

 1—3 (least disadvantaged)

535

1

  

1

  

1

  

1

 

0.7

 4—5 (most disadvantaged)

465

0.87

0.43-1.79

0.7

1.03

0.42-2.52

0.9

0.93

0.59-1.46

0.7

0.89

0.53-1.52

 

Education/income combined into socio economic status:

             

 Lowest SES

289

1

  

1

  

1

  

1

  

 Intermediate SES

138

0.68

0.34-1.42

0.3

0.57

0.26-1.26

0.2

1.46

0.91-2.35

0.1

1.47

0.80-2.71

0.2

 Highest SES

311

0.62

0.33-0.19

0.2

0.65

0.29-1.43

0.3

0.99

0.64-1.53

0.9

0.97

0.57-1.66

0.9

Previous experience of cancer:

             

 Self/family/friend with cancer

744

1

  

1

  

1

  

1

  

 No close cancer experience

255

0.83

0.46-1.50

0.5

1.28

0.68-2.40

0.4

0.77

0.51-1.15

0.2

1.34

0.88-2.12

0.2

Location based on final postcode:

             

 Regional

401

1

  

1

  

1

  

1

  

 Metropolitan

599

1.47

0.72-3.001

0.3

2.11

0.81-5.44

0.1

1.51

0.96–2.38

0.08

1.62

1.0–2.6

0.08

Years of smoking:

             

 Less than or equal to 20 years

291

-

-

-

1

  

-

-

-

1

  

 More than 20 years

304

   

1.80

0.96-3.36

0.07

   

1.37

0.88–2.12

0.2

Goodness of fit test for model

   

0.390

  

0.191

  

0.236

  

0.678

(p<0.05 indicates poor fit)