Table 1.

 Comparison of outcomes between screened and unscreened cohorts, under different screening conditions

	Screened cohort	Unscreened cohort	Difference (interquartile range)†
Population n=364 500, screening uptake 75%
Breast cancer cases	29 111	26 389	2722 (2153 to 2829)
Breast cancer deaths	8742	10 263	−1521 (−1075 to −1600)
Deaths from other causes	208 449	207 720	729 (546 to 784)
Deaths from all causes	217 192	217 983	−792 (−525 to −823)
Person years of survival*	6 630 068	6 623 161	6907 (4798 to 7328)
Person years of survival after diagnosis of breast cancer*	179 847	138 901	40 946 (36 194 to 43 710)
Quality adjusted life years*	5 330 702	5 328 662	2040 (847 to 2974)
Cost (£m)*	179	136	42.5 (36.8 to 49.9)
Population n=10 000, screening uptake 100%
Breast cancer cases	825	723	102 (79 to 103)
Breast cancer deaths	226	281	−55 (−39 to −59)
Deaths from other causes	5733	5691	27 (20 to 29)
Death from all causes	5960	5972	−29 (−19 to −30)
Person years of survival*	182 208	181 456	253 (176 to 268)
Person years of survival after diagnosis of breast cancer*	5316	3805	1498 (1324 to 1599)
Quality adjusted life years*	146 467	145 991	75 (31 to 109)
Cost (£m)*	5.3	3.7	1.6 (1.3 to 1.8)

*Discounted at 3.5% per year.

†Interquartile range for outputs from probabilistic sensitivity analysis.