Table 1.

Characteristics of respondents by sub-specialty

	Endocrinologists		Cardiologists		Nephrologists
	n	%	n	%	n	%
Total	116	100.0	190	100.0	243	100.0
Age (years)
≤ 39	31	26.7	43	22.6	64	26.3
40-49	55	47.4	69	36.3	124	51.0
50-59	25	21.6	51	26.9	49	20.2
≥ 60	5	4.3	27	14.2	6	2.5
Practice type
Medical center	43	37.1	73	38.4	46	19.1
Regional hospital	45	38.8	62	32.6	48	19.9
Area hospital	16	13.8	22	11.6	60	24.9
Clinic	12	10.3	33	17.4	87	36.1