4.

Age-standardized OS and RS of female breast cancer by areas in Jiangsu province (7 registries, patients diagnosed 2003-2005)

Survival year	Area	OS (%)	RS (%)
OS, observed survival; RS, relative survival.
1	South Jiangsu	87.1 (75.1-100)	89.0 (76.5-100)
	Mid-Jiangsu	80.9 (76.9-85.1)	82.8 (78.6-87.2)
	North Jiangsu	74.1 (67.1-81.8)	76.3 (68.9-84.4)
2	South Jiangsu	72.5 (58.0-90.7)	76.1 (60.1-96.3)
	Mid-Jiangsu	70.5 (66.0-75.2)	74.0 (69.1-79.2)
	North Jiangsu	58.6 (51.3-66.8)	61.6 (53.5-70.9)
3	South Jiangsu	64.2 (49.5-83.2)	68.8 (51.6-91.9)
	Mid-Jiangsu	60.6 (56.1-65.6)	65.1 (59.8-70.8)
	North Jiangsu	51.4 (44.5-59.5)	55.4 (47.2-65.0)
4	South Jiangsu	57.6 (42.9-77.4)	64.1 (45.7-89.9)
	Mid-Jiangsu	54.3 (49.7-59.2)	59.7 (54.1-65.8)
	North Jiangsu	44.1 (37.5-51.8)	48.6 (40.4-58.4)
5	South Jiangsu	53.7 (38.9-74.0)	62.4 (42.6-91.5)
	Mid-Jiangsu	47.2 (42.7-52.1)	53.2 (47.5-59.6)
	North Jiangsu	41.0 (34.8-48.4)	46.8 (38.3-57.1)