. 2020 Dec 18;22(12):e24345. doi: 10.2196/24345

Table 2.

Telemedicine visit diagnoses in practices (N=45) with low, intermediate, and high telemedicine use from March 18 to May 2, 2020.

Variable		Telemedicine use			P value^a
		Low	Intermediate	High
Telemedicine visits per 1000 patients per week, range		5-9.6	9.7-14	15-23	N/A^b
Number of practices, n (%)		15 (33.3)	15 (33.3)	15 (33.3)	N/A
Visit diagnosis category^c (total visits), n (%)
	Mental, behavioral, and neurodevelopmental diagnoses	969 (36.4)	1704 (31.9)	2724 (28.4)	<.001
	Skin and subcutaneous tissue diagnoses	467 (17.5)	801 (15.0)	1435 (15.0)	.006
	Respiratory system diagnoses	297 (11.2)	684 (12.8)	1395 (14.6)	<.001
	Digestive system diagnoses	182 (6.8)	396 (7.4)	697 (7.3)	.60
	Infectious and parasitic diagnoses	176 (6.6)	390 (7.3)	746 (7.8)	.04
	Injury/poisoning	92 (4)	184 (3.4)	437 (4.6)	.001
	General symptoms and signs	77 (3.5)	241 (4.5)	416 (4.3)	.01
	Eye diagnoses	77 (3.5)	147 (2.8)	255 (2.7)	.50
	Ear and mastoid process diagnoses	45 (1.7)	230 (4.3)	395 (4.1)	<.001
	Genitourinary system diagnoses	45 (1.7)	123 (2.3)	240 (2.5)	.02
	Other^d	234 (8.8)	435 (8.2)	847 (8.8)	.60

^aP values indicate significance of proportion of telemedicine visits within each individual diagnosis category compared across practice-level telemedicine use tertiles using logistic regression.

^bN/A: not applicable.

^cCategories based on codes in the International Classification of Diseases, Tenth Revision, Clinical Modification.

^dDiagnostic categories with less than 2% of visits are represented in this “other” category; these included neoplasms and hematologic diagnoses, endocrine, nutritional and metabolic diseases, nervous system diagnoses, circulatory system diagnoses, musculoskeletal diagnoses , peripartum and perinatal diagnoses, congenital anomalies, and symptoms and signs not otherwise classified, as well as codes for special purposes, injuries, and contact with health services.