Table 2.

Percentage of Medicare surgical cases covered by ACS NSQIP

Procedure|	MC cases in NSQIP	MC cases not in NSQIP	Total MC cases	Percentage covered by NSQIP
Oesophagectomy	1158	875	2033	57.0%
Cystectomy	3346	4501	7847	42.6%
Abdominal aortic aneurysm repair	3762	6448	10 210	36.8%
Pancreatectomy	3901	3399	7300	53.4%
Colectomy	32 444	103 056	135 500	23.9%
Proctectomy	6745	15 767	22 512	30.0%
Aortoiliac bypass	2255	4974	7229	31.2%
Lower extremity bypass	12 203	30 100	42 303	28.8%
Liver resection	2465	2201	4666	52.8%
Hip fracture repair	40 030	151 140	191 170	20.9%
Abdominoplasty	1058	1829	2887	36.6%
Lung resection	16 065	27 391	43 456	37.0%
Endovascular abdominal aortic aneurysm repair	8944	17 324	26 268	34.0%
Nephrectomy	9727	16 375	26 102	37.3%
Hysterectomy	17 954	45 108	63 062	28.5%
Total hip arthroplasty	56 700	195 528	252 228	22.5%
Laminectomy	60 650	154 858	215 508	28.1%
Transurethral resection of the prostate	11 345	42 928	54 273	20.9%
Ventral hernia	19 360	57 735	77 095	25.1%
Carotid endarterectomy	20 588	59 710	80 298	25.6%
Total knee arthroplasty	72 916	279 642	352 558	20.7%
Prostatectomy	10 677	18 808	29 485	36.2%
Breast reconstruction	455	700	1155	39.4%
Appendectomy	8802	31 635	40 437	21.8%
Thyroid	5358	12 598	17 956	29.8%
Gastrectomy	3782	7382	11 164	33.9%
Carotid stent	3648	7883	11 531	31.6%
Small bowel resection	10 784	30 836	41 620	25.9%
Mastectomy	6417	21 378	27 795	23.1%
Cholecystectomy	29 386	117 327	146 713	20.0%
Total				32.0%

ACS NSQIP, American College of Surgeons National Surgical Quality Improvement Project; MC, Medicare.