. 2020 Aug 27;113(4):434–442. doi: 10.1093/jnci/djaa127

Table 2.

Model average benefits, harms, and benefit to harm ratios for digital mammography screening by guideline groups for average risk women per 1000 women screened

Screening guideline^a	Screening strategy	Screens, No.	LYG^b	BC deaths averted^b	Overdiagnoses	False positives	LYG/screens	LYG/ overdiagnoses	BC deaths averted/false positives
USPSTF	Bi 50-74 y	11 182	118	6.7	14.5	920	0.0106	8.14	0.0072
ACR	An 40-74 y	31 083	192	9.6	21.5	2910	0.0062	8.94	0.0033
ACS	An 45-54, Bi 55-74	17 984	151	7.7	16.5	1666	0.0084	9.16	0.0046

Screening guideline^a

Screening strategy

Screens, No.

LYG^b

BC deaths averted^b

Overdiagnoses

False positives

LYG/screens

LYG/ overdiagnoses

BC deaths averted/false positives

USPSTF

Bi 50-74 y

11 182

118

6.7

14.5

920

0.0106

8.14

0.0072

ACR

An 40-74 y

31 083

192

9.6

21.5

2910

0.0062

8.94

0.0033

ACS

An 45-54,

Bi 55-74

17 984

151

7.7

16.5

1666

0.0084

9.16

0.0046

We used age 74 years as the age of the last possible screen for comparability across screening strategies for all analyses. ACR = American College of Radiology; ACS = American Cancer Society; An = annual; BC = breast cancer; Bi = biennial; LYG = life-years gained; USPSTF = United States Preventive Services Task Force.

The LYG and BC deaths averted are relative to the life-years and BC deaths of women at the same level of age-specific BC risk who are never screened.