Table 1.

Women characteristics by screening exposure

	Attenders	Non-attenders
N° of women	32,544	18,552
Mean age at entry	59.1	60.9	p < 0.0001
Marital status (%)
Married	70.0%	57.3%
Unmarried	8.0%	15.0%
Divorced	2.3%	3.2%
Widow	19.7%	24.5%	p < 0.0001
Deprivation index (%)
First tertile	34.0%	31.3%
Second tertile	34.3%	32.7%
Third tertile	31.7%	36.0%	p < 0.0001
N° (%) of breast cancer	1,583 (4.9%)	782 (4.2%)
In situ	143 (0.4%)	36 (0.2%)
Invasive	1,440 (4.4%)	746 (4.0%)
N° (%) of BC deaths	184 (0.6%)	218 (1.2%)