. 2017 Apr 4;14(4):e1002255. doi: 10.1371/journal.pmed.1002255

Table 1. Description of age-specific case reporting in six Chinese provinces.

Province	Region	Start year	Range of annual age-specific cases reported		Years of SIAs
Province	Region	Start year	Minimum	Maximum	Years of SIAs
Jiangsu	Eastern	1980	354	6,713	2005, 2006, 2007, 2009, 2010, 2011
Zhejiang	Eastern	1991	936	12,782	2005, 2008, 2009, 2010, 2011
Shandong	Eastern	1985	421	9,441	1996, 1999, 2000, 2001, 2004, 2008, 2009, 2010, 2011
Henan	Central	1995	149	9,742	1999, 2000, 2001, 2005, 2011
Yunnan	Central	1990	100	15,793	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011
Gansu	Western	1990	714	4,217	2002, 2004, 2005, 2008, 2010, 2011

Start year indicates the first year of observed age-specific reporting. All provinces reported age-specific cases through 2011. Years of SIAs indicate years of provincial or sub-provincial supplementary vaccination activities.