Table 2.

Characteristics of Hernia Repair Procedures in 116,572 patients

Characteristic	Total	Inguinal/Femoral Hernia Repair	Umbilical Hernia Repair	Incisional/Ventral Hernia Repair	Pa
	n (%)	n (%)	n (%)	n (%)
Total procedures	119,973	77,666	24,917	17,390
Age in years, median (range)	46 (0.5–64)	46 (0.5–64)	44 (0.5–64)	49 (0.5–64)	<0.001b
Age < 18 years	11,097 (9.3)	8,864 (11.4)	2,021 (8.1)	212 (1.2)	<0.001
Male	95,645 (79.7)	70,288 (90.5)	17,933 (72.0)	7,424 (42.7)	<0.001
Location of procedurec					<0.001
Inpatient	9,513 (7.9)	3,358 (4.3)	1,433 (5.8)	4,722 (27.2)
Day surgery at hospital	78,794 (65.7)	53,044 (68.3)	16,704 (67.0)	9,046 (52.0)
Ambulatory surgery center	14,753 (12.3)	10,202 (13.1)	3,218 (12.9)	1,333 (7.7)
Missing facility type	16,913 (14.1)d	11,062 (14.2)	3,562 (14.3)	2,289 (13.2)	NP
Laparoscopic procedures, n (%) of total per yeare
2004	2,164 (11.9)	2,164 (17.7)	NA	NA
2005	2,272 (12.2)	2,272 (18.4)	NA	NA
2006	2,264 (12.5)	2,264 (19.0)	NA	NA
2007	2,400 (13.6)	2,400 (21.3)	NA	NA
2008	2,558 (15.0)	2,558 (23.1)	NA	NA
2009	3,190 (20.4)	2,419 (24.9)	424 (11.7)	347 (15.2)
2010	3,251 (22.0)	2,447 (26.8)	460 (13.4)	344 (15.5)

NOTE. NA, not available; NP not performed.

^aChi-square test comparison across anatomic sites.

^bKruskal-Wallis test.

^cInpatient and day surgery matched to a facility in the American Hospital Association (AHA) Annual Survey of Hospitals (Chicago, IL); inpatient was based on an inpatient designation in the HealthCore claims data. Ambulatory surgery center matched to a facility in the IMS Health Outpatient Surgery Center Profiling Solution data (Plymouth Meeting, PA).

^dMissing facility type due to no match to a facility in the AHA Annual Survey of Hospitals or the IMS Health Outpatient Surgery Center Profiling Solution data (n=16,826), or a match to multiple facilities (n=87).

^eSpecific ICD-9-CM procedure codes for laparoscopic umbilical and incisional/ventral hernia repair were not introduced until 2009.