Table 4 Modelling effect of year and socioeconomic factors on vaccination uptake: risk ratios (95% confidence intervals)

1997

1.00

1.00

1.00

1.00

1.00

1998

1.06 (1.02,1.09)

1.05 (1.02,1.09)

1.08 (1.03,1.13)

1.07 (1.03,1.12)

1.08 (1.03,1.13)

1999

1.09 (1.05,1.14)

1.09 (1.05,1.14)

1.10 (1.04,1.16)

1.09 (1.03,1.16)

1.09 (1.04,1.15)

2000

1.33 (1.25,1.42)

1.33 (1.25,1.42)

1.32 (1.22,1.43)

1.32 (1.22,1.42)

1.32 (1.22,1.42)

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001

Gender

Male

1.00

1.00

1.00

1.00

1.00

Female

0.89 (0.87,0.91)

0.89 (0.87,0.91)

0.89 (0.87,0.92)

0.88 (0.86,0.91)

0.90 (0.87,0.92)

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001

Current age (years)

Under 80

1.00

1.00

1.00

1.00

1.00

80–84

1.01 (0.98,1.04)

1.01 (0.98,1.04)

1.01 (0.97,1.05)

1.02 (0.98,1.07)

1.02 (0.98,1.06)

85 or more

0.92 (0.88,0.96)

0.92 (0.88,0.96)

0.89 (0.83,0.94)

0.91 (0.85,0.96)

0.89 (0.84,0.94)

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001

Carstairs quintiles (deprivation)

Least

Not in model

1.00

Not in model

1.00

1.00

Second

1.00 (0.95,1.05)

1.04 (0.97,1.12)

1.05 (0.97,1.13)

Mid

0.98 (0.92,1.05)

1.01 (0.93,1.10)

1.03 (0.94,1.13)

Fourth

0.95 (0.84,1.08)

0.98 (0.84,1.16)

0.99 (0.83,1.18)

Most

0.82 (0.73,0.93)

0.82 (0.72,0.94)

0.85 (0.70,1.05)

p = 0.011

p =< 0.001

p = 0.10

Population density category (people per sq km)

-250

Not in model

1.00

Not in model

1.00

1.00

-1000

0.91 (0.80,1.03)

0.99 (0.84,1.16)

0.99 (0.83,1.17)

-2500

0.99 (0.88,1.11)

1.08 (0.93,1.26)

1.10 (0.94,1.30)

>2500

1.04 (0.91,1.19)

1.13 (0.96,1.32)

1.14 (0.95,1.36)

p = 0.30

p = 0.36

p = 0.27

Individual socioeconomic position ⁴

Not in model

Not in model

Not in model

Not in model

A

1.00

B

0.94 (0.89,0.98)

C

1.03 (0.96,1.11)

p = 0.018