Table 2 Predictors of HZV dispensing rates for those aged 50 years or older*

Rural geography

Urban

0.68

0.53-0.87

Female sex

Male

1.44

1.35-1.53

Age group

50-54

55-59 years of age

2.14

1.96-2.33

60-64

4.71

4.33-5.13

65-69

6.64

6.10-7.24

70-74

6.50

5.95-7.10

75-79

5.86

5.35-6.40

80-84

4.13

3.76-4.54

85+

2.13

1.93-2.36

Year

2009

2010

11.69

9.08-15.07

2011

25.97

20.24-33.32

2012

105.41

82.41-134.83

2013

153.42

119.98-196.19

Income quintile

Q1³

Q2

1.18

1.10-1.27

Q3

1.34

1.25-1.44

Q4

1.48

1.38-1.58

Q5

1.57

1.45-1.69

Two-way interaction terms

Geography*year

Urban*2009

Rural*2010

1.31

1.02-1.69

Rural*2011

1.20

0.94-1.54

Rural*2012

1.44

1.13-1.84

Rural*2013

1.57

1.22-2.00

Geography*income quintile

Urban*Q1

Rural*Q2

0.87

0.81-0.93

Rural*Q3

0.93

0.86-0.99

Rural*Q4

0.87

0.81-0.93

Rural*Q5

0.70

0.65-0.76

Sex*age group

Male*50-54

Female*55-59

0.96

0.88-1.04

Female*60-64

0.90

0.82-0.97

Female*65-69

0.87

0.80-0.94

Female*70-74

0.83

0.76-0.90

Female*75-79

0.81

0.75-0.89

Female*80-84

0.78

0.710.85

Female*85+

0.70

0.63-0.77