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Table 4 Null and adjusted Prevalence Ratios (PR) for selected indicators using Poisson regression analysis with robust variance estimation, 2012 NSWPHS

From: Inclusion of mobile telephone numbers into an ongoing population health survey in New South Wales, Australia, using an overlapping dual-frame design: impact on the time series

Indicator

Category

Null

Adjusted by weighting variables^

PR 95%CI

PR 95%CI

Five or more drinks of alcohol in a day

Dual phone users (mobile frame)

1.48

1.29

1.69

*

0.94

0.78

1.13

 

Landline-only phone user

0.86

0.70

1.06

 

1.25

1.02

1.54

*

Mobile-only phone user

2.51

2.14

2.93

*

1.29

1.04

1.59

*

REF – Dual phone users (landline frame)

1.00

   

1.00

   

More than two drinks of alcohol in a day

Dual phone users (mobile frame)

1.18

1.10

1.27

*

0.88

0.80

0.97

#

Landline-only phone user

0.71

0.63

0.80

#

0.89

0.79

0.99

#

Mobile-only phone user

1.63

1.49

1.79

*

1.07

0.95

1.20

 

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Recommended fruit intake

Dual phone users (mobile frame)

0.94

0.90

0.97

#

0.99

0.94

1.04

 

Landline-only phone user

0.99

0.95

1.04

 

0.96

0.92

1.01

 

Mobile-only phone user

0.87

0.81

0.92

#

0.93

0.86

1.01

 

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Recommended vegetable intake

Dual phone users (mobile frame)

0.68

0.60

0.77

#

0.87

0.74

1.02

 

Landline-only phone user

0.86

0.74

0.99

#

0.82

0.71

0.96

#

Mobile-only phone user

0.47

0.37

0.60

#

0.65

0.50

0.85

#

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Current smoking

Dual phone users (mobile frame)

1.19

1.08

1.32

*

0.85

0.74

0.98

#

Landline-only phone user

1.03

0.91

1.18

 

1.34

1.18

1.53

*

Mobile-only phone user

2.10

1.88

2.35

*

1.39

1.20

1.63

*

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Adequate physical activity

Dual phone users (mobile frame)

1.10

1.05

1.14

*

0.96

0.91

1.02

 

Landline-only phone user

0.77

0.72

0.82

#

0.84

0.78

0.89

#

Mobile-only phone user

1.26

1.19

1.32

*

1.04

0.97

1.12

 

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Positive self-reported health status

Dual phone users (mobile frame)

1.05

1.03

1.07

*

1.04

1.00

1.07

 

Landline-only phone user

0.86

0.84

0.89

#

0.89

0.86

0.92

#

Mobile-only phone user

1.05

1.02

1.08

*

1.01

0.97

1.05

 

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Current asthma

Dual phone users (mobile frame)

0.72

0.63

0.82

#

0.77

0.65

0.91

#

Landline-only phone user

0.98

0.86

1.13

 

1.02

0.88

1.17

 

Mobile-only phone user

0.78

0.64

0.94

#

0.82

0.66

1.04

 

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Ever diagnosed with diabetes

Dual phone users (mobile frame)

0.69

0.60

0.80

#

1.01

0.86

1.20

 

Landline-only phone user

1.63

1.45

1.83

*

1.23

1.09

1.38

*

Mobile-only phone user

0.51

0.40

0.66

#

1.13

0.86

1.49

 

REF – Dual phone users (landline frame)

1.00

   

1.00

   

Overweight or obese

Dual phone users (mobile frame)

0.88

0.84

0.91

#

0.99

0.94

1.04

 

Landline-only phone user

1.02

0.98

1.07

 

0.97

0.93

1.02

 

Mobile-only phone user

0.73

0.68

0.78

#

0.90

0.83

0.97

#

REF – Dual phone users (landline frame)

1.00

   

1.00

   
  1. NOTE: *significantly (p < 0.05) higher than reference category; #significantly (p < 0.05) lower than reference category.
  2. NOTE: ^weighting variables; age group, sex, health administration area, household size and number of telephone lines.