Table 1. Demographics of women born between 1 January 1988 and September 1993 invited for screening.

			Univariate		Multivariate -all women		Multivariate -eligible for HPV vaccination (1990 onwards) only
	No. of women	Attendance %	Risk ratio	95% CI	Risk ratio	95% CI	Risk ratio	95% CI
Year of birth
1988	34 506	48.7	1.100	1.081–1.119	1.494	1.464–1.524	–	–
1989	33 886	47.7	1.077	1.059–1.097	1.462	1.433–1.492	–	–
1990	35 333	47.5	1.073	1.055–1.092	1.330	1.306–1.354	1.201	1.172–1.231
1991	35 510	47.7	1.077	1.058–1.096	1.111	1.092–1.130	1.115	1.096–1.134
1992	35 578	45.6	1.029	1.011–1.048	1.019	1.001–1.037	1.018	1.000–1.035
1993	26 210	44.3	1		1		1
Doses of vaccine
0	128 629	43.6	0.807	0.799–0.815	0.645	0.637–0.654	0.592	0.582–0.602
1	3285	44	0.815	0.784–0.848	0.791	0.761–0.822	0.796	0.765–0.829
2	6343	48.1	0.891	0.868–0.915	0.863	0.841–0.886	0.891	0.845–0.893
3		54	1		1		1
SIMD
1 (Most deprived)	45 007	46.4	1.038	1.023–1.054	1.040	1.025–1.055	1.039	1.019–1.060
2	41 655	47.6	1.064	1.049–1.080	1.058	1.043–1.073	1.045	1.025–1.067
3	38 969	47.5	1.062	1.047–1.078	1.049	1.034–1.065	1.034	1.013–1.056
4	34 243	49.1	1.097	1.080–1.114	1.070	1.054–1.086	1.044	1.023–1.066
5 (Least deprived)	41 149	44.7	1		1		1
Urban rural
Urban	187 191	46.8	1.003	0.975–1.031	1.019	0.991–1.048	0.988	0.951–1.026
Accessible remote	8142	51.5	1.104	1.066–1.143	1.087	1.051–1.125	1.027	0.980–1.076
Very remote	5690	46.7	1		1		1

Abbreviations: CI=confidence interval; SIMD=Scottish Index of Multiple Deprivation.