Table 1.

Number of ABOM Diplomates by U.S. Census Region and Specialty^*

N (%)	Region**				p-value***
	Northeast	Midwest	South	West
Primary Care Adult	250 (27)	200 (22)	297 (32)	178 (19)	<0.01
Specialty Adult	74 (26)	64 (23)	88 (31)	54 (19)	0.21
Primary Care Pediatrics	39 (28)	27 (20)	52 (38)	19 (14)	0.14
Specialty Pediatrics	9 (41)	2 (9)	10 (45)	1 (5)	0.04
Primary Care Adult-Pediatrics	130 (16)	215 (26)	304 (37)	163 (20)	<0.01
Specialty Adult-Pediatrics	3 (19)	1 (6)	8 (50)	4 (25)	0.36
Surgical	49 (22)	56 (25)	92 (41)	28 (12)	0.06
Other	15 (10)	25 (17)	69 (36)	42 (19)	<0.01

Abbreviations: ABOM – American Board of Obesity Medicine.

^*Primary care adult includes internal medicine trained physicians without other specialization, whereas specialty adult includes physicians with both internal medicine and other specialty board certification (e.g., endocrinology). Primary care pediatrics includes pediatrics trained physicians without other specialization, whereas specialty pediatric includes physicians with both pediatrics and other specialty board certification. Primary care adult-pediatrics includes family medicine and internal medicine-pediatrics physicians without other specialization, whereas specialty adult-pediatrics includes physicians from these domains that also have additional specialty board certification. Surgical includes general surgery, obstetrics/gynecology, cardiothoracic surgery, orthopedic surgery, ophthalmology, otolaryngology, and urology. “Other” includes the following specialties: anesthesiology, dermatology, emergency medicine, nuclear medicine, occupational medicine, pathology, physical medicine & rehabilitation, preventive medicine, psychiatry & neurology, and radiology. Of note, no specialty was reported for 9 physicians (0 Northeast; 2 Midwest; 7 South; 0 West).

^**States grouped into regions as defined by the US Census Bureau (22).

^***p-values calculated from Chi²tests comparing row proportions between region.