. 2023 Aug 9;25:e44981. doi: 10.2196/44981

Table 2.

Correlation table.

		Portal usage	Web usage	Mobile usage	COVID_Period	Minority	Age	Gender	BMI	Abnormal BP^a	COVID problem	Office visits	Income	Education attainment	Medical problems
Portal usage
	r	1	0.79^b	0.65	0.07	−0.04	0	0	0.03	0	0.02	0.27	0	0	0.13
	P value	–^c	<.001	<.001	<.001	<.001	.53	.03	<.001	.08	<.001	<.001	.48	.51	<.001
Web usage
	r	0.79	1	0.04	0.04	−0.05	0.06	0	0	0	0.01	0.21	0.02	0.02	0.11
	P value	<.001	–	<.001	<.001	<.001	<.001	.10	.43	.30	<.001	<.001	<.001	<.001	<.001
Mobile usage
	r	0.65	0.04	1	0.07	0	−0.08	−0.01	0.04	−0.01	0.02	0.17	−0.02	0.02	0.06
	P value	<.001	<.001	–	<.001	.09	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001
COVID_Period
	r	0.07	0.04	0.07	1	0	−0.01	0	0	0	0	-0.04	0	0	0.03
	P value	<.001	<.001	<.001	–	.17	<.001	.62	.41	.44	.75	<.001	.89	.32	<.001
Minority
	r	−0.04	−0.05	0	0	1	−0.19	−0.11	0.15	0.05	0.03	0.02	−0.2	−0.14	0.06
	P value	<.001	<.001	.09	.17	–	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001
Age
	r	0	0.06	−0.08	−0.01	−0.19	1	0.17	−0.11	0.13	0	0.07	0.12	0.12	0.24
	P value	.53	<.001	<.001	<.001	<.001	–	<.001	<.001	<.001	.02	<.001	<.001	<.001	<.001
Gender
	r	0	0	−0.01	0	−0.11	0.17	1	−0.11	0.08	−0.02	0.01	0.04	0.04	−0.01
	P value	.03	.10	<.001	.62	<.001	<.001	–	<.001	<.001	<.001	<.001	<.001	<.001	.002
BMI
	r	0.03	0	0.04	0	0.15	−0.11	−0.11	1	0.17	0.01	0.03	−0.13	−0.13	0.1
	P value	<.001	.43	<.001	.41	<.001	<.001	<.001	–	<.001	<.001	<.001	<.001	<.001	<.001
Abnormal BP
	r	0	0	−0.01	0	0.05	0.13	0.08	0.17	1	0	0.01	−0.03	−0.03	0.04
	P value	.08	.30	<.001	.44	<.001	<.001	<.001	<.001	–	.20	<.001	<.001	<.001	<.001
COVID problem
	r	0.02	0.01	0.02	0	0.03	0	−0.02	0.01	0	1	0.02	0	−0.01	0.02
	P value	<.001	<.001	<.001	.75	<.001	.02	<.001	<.001	.20	–	<.001	.03	.003	<.001
Office visits
	r	0.27	0.21	0.17	−0.04	0.02	0.07	0.01	0.03	0.01	0.02	1	−0.01	0	0.23
	P value	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001	–	<.001	.54	<.001
Income
	r	0	0.02	−0.02	0	−0.2	0.12	0.04	−0.13	−0.03	0	−0.01	1	0.71	−0.04
	P value	.48	<.001	<.001	.89	<.001	<.001	<.001	<.001	<.001	.03	<.001	–	<.001	<.001
Education attainment
	r	0	0.02	.02	0	−0.14	0.12	0.04	−0.13	−0.03	−0.01	0	0.71	1	−0.03
	P value	.51	<.001	<.001	.32	<.001	<.001	<.001	<.001	<.001	.003	.54	<.001	–	<.001
Medical problems
	r	0.13	0.11	0.06	0.03	0.06	0.24	−0.01	0.10	0.04	0.02	0.23	−0.04	−0.03	1
	P value	<.001	<.001	<.001	<.001	<.001	<.001	.002	<.001	<.001	<.001	<.001	<.001	<.001	–

^aBP: blood pressure.

^bThe correlation is significant at a level of .01 (two-tailed).

^cNot applicable.