S2.

Mortality rate ratio of cervical cancer by geographical regions from 1973 to 2013

Period	Region	RR (95% CI)
RR, rate ratio; 95% CI, 95% confidence interval.
1973–1975	North China	1.21 (1.03–1.43)
1973–1975	Northeast China	0.74 (0.62–0.87)
1973–1975	East China	0.96 (0.81–1.13)
1973–1975	Central China	1.34 (1.14–1.58)
1973–1975	South China	0.48 (0.41–0.57)
1973–1975	Southwest China	0.71 (0.60–0.84)
1973–1975	Northwest China	1.60 (1.36–1.89)
1990–1992	North China	1.23 (1.10–1.36)
1990–1992	Northeast China	0.46 (0.39–0.54)
1990–1992	East China	0.94 (0.86–1.03)
1990–1992	Central China	1.04 (0.95–1.15)
1990–1992	South China	0.68 (0.60–0.76)
1990–1992	Southwest China	0.68 (0.61–0.76)
1990–1992	Northwest China	2.74 (2.48–3.03)
2004–2005	North China	1.08 (0.97–1.20)
2004–2005	Northeast China	0.65 (0.56–0.76)
2004–2005	East China	0.81 (0.75–0.87)
2004–2005	Central China	1.24 (1.14–1.36)
2004–2005	South China	0.86 (0.76–0.98)
2004–2005	Southwest China	0.73 (0.64–0.82)
2004–2005	Northwest China	2.87 (2.59–3.17)
2011–2013	North China	0.80 (0.72–0.89)
2011–2013	Northeast China	1.11 (0.99–1.24)
2011–2013	East China	0.87 (0.79–0.96)
2011–2013	Central China	1.49 (1.34–1.65)
2011–2013	South China	0.99 (0.88–1.11)
2011–2013	Southwest China	1.02 (0.90–1.15)
2011–2013	Northwest China	1.50 (1.32–1.71)
1973–2013	North China	1.07 (0.93–1.22)
1973–2013	Northeast China	0.75 (0.65–0.86)
1973–2013	East China	0.90 (0.79–1.02)
1973–2013	Central China	1.26 (1.11–1.44)
1973–2013	South China	0.72 (0.63–0.82)
1973–2013	Southwest China	0.78 (0.68–0.89)
1973–2013	Northwest China	2.09 (1.83–2.38)