Table 2 Results from mixed-effects Cox regression models, with random intercepts for GP practices

Rotavirus vaccination

No

ref

ref

ref

ref

ref

ref

ref

ref

Yes

0.93

0.84–1.04

1.05

0.86–1.28

1.01

0.87–1.19

0.89

0.68–1.19

Sex

Male

ref

ref

ref

ref

Ref

ref

ref

ref

Female

1.42

1.29–1.56

1.42

1.29–1.56

1.02

0.88–1.17

1.02

0.88–1.17

Year of birth

2010

ref

ref

ref

Ref

ref

ref

ref

ref

2011

0.98

0.85–1.14

0.98

0.85–1.14

1.08

0.86–1.34

1.08

0.86–1.34

2012

1.03

0.89–1.19

1.03

0.89–1.19

0.93

0.74–1.17

0.93

0.74–1.17

2013

0.91

0.77–1.06

0.88

0.72–1.08

1.11

0.88–1.41

1.19

0.89–1.58

2014

0.95

0.80–1.13

0.91

0.71–1.17

1.15

0.90–1.48

1.28

0.89–1.82

2015

0.84

0.70–1.02

0.81

0.6–1.02

0.89

0.65–1.19

0.98

0.66–1.46

Region

North East

ref

ref

ref

ref

Ref

Ref

ref

Ref

North West

1.18

0.85–1.63

1.12

0.82–1.54

0.81

0.55–1.18

–

–

Yorkshire and Humber

1.45

0.97–2.15

1.39

0.95–2.04

0.61

0.35–1.06

–

–

East Midlands

1.07

0.68–1.70

0.96

0.61–1.50

0.91

0.52–1.57

–

–

West Midlands

1.18

0.86–1.62

1.10

0.80–1.51

0.66

0.45–0.97

–

–

East of England

1.23

0.85–1.78

1.01

0.70–1.45

1.08

0.70–1.66

–

–

South West

1.25

0.90–1.74

1.13

0.82–1.56

0.83

0.56–1.23

–

–

South Central

1.40

1.01–1.94

1.14

0.83–1.58

0.77

0.52–1.15

–

–

London

1.06

0.77–1.46

1.02

0.74–1.40

0.63

0.43–0.92

–

–

South East Coast

1.31

0.93–1.86

1.11

0.79–1.57

0.94

0.62–1.43

–

–

IMD quintile

1

ref

ref

ref

ref

ref

Ref

ref

Ref

2

0.96

0.84–1.11

0.97

0.84–1.12

1.20

0.96–1.51

1.20

0.96–1.51

3

0.86

0.75–1.00

0.87

0.75–1.02

1.05

0.83–1.33

1.05

0.83–1.33

4

0.72

0.61–0.84

0.73

0.62–0.85

1.10

0.87–1.38

1.10

0.87–1.39

5

0.58

0.50–0.68

0.58

0.49–0.69

1.02

0.81–1.29

1.02

0.81–1.29

GP consultations per year

1.24

1.24–1.25

–

–

1.25

1.24–1.25

–

–