Table 2.

h-Index of Academic Orthopaedic Surgeons Stratified by Demographic Characteristics

Characteristic	No. of Surgeons	h-Indexa		P Value
		Median	IQR
Sex				<0.001
Male	2274	10	4-20
Female	331	6	3-12
Faculty rank				< 0.001
Assistant professor	1178	5	2-9
Associate professor	685	10	5-16
Full professor	743	23	14-35
Region				< 0.001
Northeast	771	11	5-21
Midwest	444	10	5-20
West	418	12.5	5-23
South	973	7	3-15
Years in practice				<0.001
0-10	1008	6	3-11
11-20	723	10	5-19
21-30	504	15	6-26
31+	371	20	10-34
Subspecialty				<0.001
Adult reconstruction	351	11	5-19
Foot and ankle	200	9	4-17
Sports medicine	491	11	4-22
Spine	321	12	5-25
Trauma	374	8.5	4-16
Pediatrics	326	8	3-15
Hand and upper extremity	335	8	4-15
Musculoskeletal oncology	157	11	6-20
Shoulder	133	10	4.5-19.5
Other	63	13	6-22
No. of fellowships				<0.001
0	137	8	2-21
1	2089	9	4-19
2	299	12	5-20
3+	81	12	7-24

h-index = Hirsch index, IQR = interquartile range.

^aThe h-index was not available for 206 surgeons who were included in the study.