Table 2.

Medical Subject Headings (MeSH), number of publications 1999–2008 identified by the search strategy, and n (%) reports meeting inclusion criteria as a comparative clinical trial evaluating an invasive therapeutic procedure.

Medical Subject Heading	Total Published Reports Retrieved*	Eligible Reports, n (%)	N Eligible Reports Meeting Influence Criteria & Included in Review Pool
Aortic Aneurysm	1,466	113 (7.7)	9
Arrhythmia	2,100	181 (8.6)	7
Arthritis	1,701	171 (10.1)	15
Barrett Esophagus	300	18 (6.0)	7
Brain Neoplasm	1,423	15 (1.1)	5
Carcinoma, Bronchogenic & Non-Small-Cell-Lung	798	24 (3.0)	7
Carcinoma, Ductal, Breast	666	3 (0.5)	3
Carotid Artery Disease & Carotid Stenosis	1,016	76 (7.5)	13
Cerebrovascular Accident	2,584	302 (11.7)	8
Cholecystitis	225	32 (14.2)	5
Cholecystolithiasis	241	39 (16.2)	5
Colorectal Neoplasm	3,078	116 (3.8)	18
Coronary Disease	3,304	325 (9.8)	32
Dystonic Disorder	32	3 (9.4)	3
Embolism	875	72 (8.2)	7
Endometriosis	305	23 (7.5)	7
Esophageal Neoplasm	786	40 (5.1)	8
Esophagitis	501	33 (6.6)	7
Heart Failure, Congestive	2,571	125 (4.9)	6
Intracranial Arteriovenous Malformation	104	1 (1.0)	1
Laryngeal Neoplasm	396	19 (4.8)	6
Myocardial Infarction	3,819	395 (10.3)	13
Nephrolithiasis	188	23 (12.2)	12
Otitis Media	278	44 (15.8)	7
Ovarian Neoplasm	819	14 (1.7)	6
Overnutrition	1,066	72 (6.8)	6
Parkinson Disease & Parkinsonian Disorders	351	23 (6.6)	5
Peripheral Vascular Disease	823	75 (9.1)	10
Prostatic Hyperplasia	531	125 (23.5)	6
Prostatic Neoplasm	1,861	23 (1.2)	7
Pulmonary Disease, Chronic Obstructive	306	14 (4.6)	6
Thrombosis	2,556	186 (7.3)	10
Urinary Incontinence	874	134 (15.3)	23
TOTALS	37,944	2,890 (7.6)	290

^*Total including eligible trial reports discovered by review of citation lists of meta-analyses