Table 2.

Weighted and unweighted unadjusted prevalence estimates for eHealth tasks, Health Information National Trends Survey (HINTS) 4 Cycle 1, October 2011 to February 2012 (2012) (N=2358).

eHealth Task		n	Unweighted %	Weighted %
Ever looked for information about health or medical topics from any source?
	Yes	2132	90.42	88.79
	No	226	9.58	11.21
In the past 12 months, used email or Internet to communicate with a doctor or doctor’s office?
	No	1849	78.41	81.05
	Yes	509	21.59	18.95
In the past 12 months, bought medicine or vitamins online?
	No	1899	80.53	82.33
	Yes	459	19.47	17.67
In the past 12 months, used the Internet to look for a health care provider?
	No	1497	63.49	61.58
	Yes	861	36.51	38.42
In the last 12 months, used the Internet to keep track of personal health information
	No	1857	78.75	80.71
	Yes	501	21.25	19.29
In the past 12 months, used a website to help with diet, weight, or physical activity?
	No	1433	60.77	57.02
	Yes	925	39.23	42.98
In the last 12 months, used the Internet to download health-related info to a mobile device
	No	2097	88.93	88.30
	Yes	261	11.07	11.70
In the past 12 months, used the Internet to look for health or medical information for self?
	No	525	22.3	21
	Yes	1833	77.7	79
In the past 12 months, used the Internet to look for health or medical information for someone else?
	No	1016	43.09	42.96
	Yes	1342	56.91	57.04
In the past 12 months, participated in an online support group for people with a similar health or medical issue?
	No	2248	95.34	95.37
	Yes	110	4.66	4.63
In the past 12 months, visited a social networking site to read and share about medical topics?
	No	2013	85.37	83.20
	Yes	345	14.63	16.80
In the past 12 months, wrote in an online diary or blog about any type of health topic?
	No	2282	96.78	96.74
	Yes	76	3.22	3.26