Table 1. Health care indicators, reported, and deducted reference values and observed rates in the OVIS study.

Health care indicator	Evidence based recommendations for primary treatment of breast cancer (organ committee working group, consensus 2001)	Phrase or reported values from S3 guideline breast cancer (version 2004)	Deducted reference value (percent)	Observed rate in OVIS study in % (95% confidence interval)
Basic diagnostics*1
Mammography	Recommended	Mandatory procedure	>95	94.8 [94; 96]
Ultrasonography	Recommended	Mandatory procedure	>95	78.2 [76; 80]
Magnetic resonance imaging	Insufficient data to warrant general recommendation	To be added if required	<10	4.8 [4; 6]
Pretherapeutic staging*2
Abdominal ultrasonography	Preoperative diagnostics include ...	Should be carried out	50-95	81.2 [79; 83]
Chest x-ray on two levels	Preoperative diagnostics include ...	Should be carried out	50-95	92.2 [91; 93]
Skeletal scintigraphy	If required	Should be carried out	50-95	87.1 [86; 89]
Therapy
Breast conserving therapy	All patients should be informed about (. . .) breast conserving therapy, list of indications	Aim (. . .) is*3In pT1 and pT2-Ca > 60%*4	50-95	Total: 70.9 [69; 73] T1: 83.9 [82; 86] T2: 62.7 [59; 66]
Radiotherapy after breast conserving therapy	Postoperative radiotherapy of remaining breast tissue is (. . .) standard	> 95%*5		T3/4: 19.6 [14; 27] 96.3 [95; 97]
Axillary surgery	Obligatory component of both operative methods (breast conserving therapy and mastectomy)	> 95%*6		90.6 [89; 92]
Axillary radiotherapy	Radiotherapy of (. . .) axillary lymph drainage pathways is of slight importance (. . .) If 4 or (more lymph nodes are positive (. . .) principally recommended (. . .).	Individual decision*7	<10	35.8 [34; 38]
Systemic therapy	Standard treatment	> 90%*8		95.1 [94; 96]

Found in S3 guideline: ^*1 statement 1; ^*2 statement 3; ^*3 statement 8; ^*4 appendix 7A4.2; ^*5 appendix 7 A6.2; ^*6 appendix 7 A4.6; ^*7 statement 27; ^*8 appendix 7 A7.