Time to detoxify medical literature from guideline overdose

Table 1 A simplistic presentation of conflicting statements in mammography and clinical breast examination by multiple authorities in last few years

Yr	Age for first mammogram	Recommending authority	Frequency	Clinical breast exam
2001	50-69 yr	Canadian Task Force	1-2 yr	1-3 yr
2003	40-49 yr (1-2 yr)	ACOG	As in column 2	Annually after 20 yr
	> 50 yr (annually)
2007	40-49 yr (individualize)	ACP	As in column 2	No statement
	50-74 yr (1-2 yr)
2009	40-49 yr (individualize)	USPSTF	2 yr	Insufficient evidence
	50-74 yr (2 yr)
2010	40 yr and above	American Cancer Society	Annually	20-40 yr every 3 yr and then annually
2011		NCCN
2010	40 yr	NCI	1-2 yr	No statement
2011	47-73 yr	NHS, United Kingdom	3 yr	No statement

ACOG: American College of Obstetrics and Gynecology; ACP: American College of Physicians; USPSTF: United States Preventive Services Task Force; NCCN: National Comprehensive Cancer Network; NCI: National Cancer Institute; NHS: National Health Services.