Table 2.

Differences by age cohort and race/ethnic group in use of the health plan’s patient portal in 2013 among patients ages 65-79 who have diabetes, hypertension, and/or coronary artery disease^a.

Use of the patient portal in 2013	Age	All	Non-Hispanic white	Black	Latino	Filipino	Chinese
Was registered to use the patient portal by end of 2013, %
	65-79	76.9	81.5	55.2b	63.0b	61.9b	82.0
	65-69	82.2	86.8	63.5b	68.3b	67.3b	87.9
	70-74	78.5b	83.3c	56.2b,c	64.6b,d	62.7b,c	83.7d
	75-79	71.9b	76.5c	48.4b,c	57.9b,c	56.3b,c	77.0c
Used the patient portal to send a secure message to a doctor, view lab test results, order a prescription refill, or make an appointment ≥1 time in 2013, %
	65-79	63.3	69.2	36.2b	44.5b	42.8b	71.7e
	65-69	70.3	76.7	44.1b	51.4b	50.5b	78.6
	70-74	65.4b	71.6c	37.2b,c	46.4b,c	43.2b,c	74.6e,f
	75-79	56.6b	61.9c	29.9b,c	38.2b,c	35.8b,c	64.9b
Sent a secure message through the patient portal ≥1 time in 2013, %
	65-79	49.3	54.8	25.8b	32.6b	28.7b	52.8e
	65-69	56.0	62.2	32.5b	38.2b	35.5b	59.6
	70-74	51.2b	57.0c	26.6b,c	34.1b,g	29.2b,c	56.6
	75-79	43.0b	47.9c	20.4b,c	27.6b,c	22.4bb,c	45.1c,g

^aStudy population for this table is members who were in a health plan diabetes, hypertension, or coronary artery disease registry in 2013. Cell percentages represent use among adults in that age, race/ethnic, or age-race/ethnic subgroup. The denominator for cell percentages in the “All” column includes all non-Hispanic white, black, Latino, Filipino, and Chinese members in that age group. See Multimedia Appendix 1 for cell denominators. Due to the large denominators for all cells, comparisons with P values ≥.055 are not reported. See Multimedia Appendix 3 for detailed P values.

^bSignificantly differs (P<.001) from non-Hispanic white within same age group after controlling for sex.

^cSignificantly differs (P<.001) from 65-69 age group within All or within same race/ethnic group after controlling for sex.

^dSignificantly differs (P<.01) from 65-69 age group within All or within same race/ethnic group after controlling for sex.

^eSignificantly differs (P<.05) from non-Hispanic white within same age group after controlling for sex.

^fSignificantly differs (P<.05) from 65-69 age group within All or within same race/ethnic group after controlling for sex.

^gSignificantly differs (P<.01) from non-Hispanic white within same age group after controlling for sex.