Table 6.
Sociodemographic, health, and internet access characteristics differentiating self-reported users and nonusers of Web-based health information and advice resources during the prior year, by age group.
| Characteristic | 45 to 65 years, weighted % (MoEa) | 66 to 75 years, weighted % (MoE) | 76 to 85 years, weighted % (MoE) | 45 to 65 years, AORb (95% CI) | 66 to 75 years, AOR (95% CI) | 76 to 85 years, AOR (95% CI) | |
| Age group | |||||||
| Younger agec (refd) | 47.0 (2.1) | 51.5 (2.7) | 38.8 (2.6) | (ref) | (ref) | (ref) | |
| Older agec | 49.4 (1.9) | 47.6 (2.9) | 33.5 (5.0) | 1.10 (0.97-1.25) | 1.04 (0.87-1.24) | 1.00 (0.75-1.35) | |
| Gender | |||||||
| Male (ref) | 43.3 (2.2) | 49.9 (2.8) | 41.7 (3.5) | (ref) | (ref) | (ref) | |
| Female | 52.5 (2.0)e | 49.9 (2.8) | 32.3 (3.7)e | 1.45 (1.28-1.64)e | 1.06 (0.89-1.27) | 0.85 (0.66-1.11) | |
| Race/Ethnicity | |||||||
| White non-Hispanic (ref) | 51.9 (1.9) | 52.7 (2.4) | 40.0 (3.2) | (ref) | (ref) | (ref) | |
| Black | 48.6 (5.1) | 41.7 (7.9)f | 29.9 (10.0) | 0.99 (0.78-1.25) | 0.91 (0.61-1.35) | 0.76 (0.42-1.38) | |
| Hispanic | 39.6 (3.9)e | 41.0 (6.9)g | 19.3 (5.4)e | 0.74 (0.71-0.89)g | 0.85 (0.61-1.20) | 0.60 (0.39-0.94)f | |
| Filipino | 43.6 (6.1)f | 32.8 (8.0)e | 26.2 (10.6)f | 0.70 (0.44-1.11) | 0.71 (0.33-1.51) | 1.95 (0.52-7.31) | |
| East Asian | 38.2 (2.4)f | 53.0 (8.1) | 30.2 (10.0) | 0.53 (0.34-0.82)g | 1.30 (0.62-2.72) | 1.70 (0.49-5.85) | |
| Education | |||||||
| <High school graduate | 21.1 (7.7)e | 26.4 (9.3)e | 20.2 (7.3)e | 0.43 (0.26-0.72)g | 0.74 (0.39-1.40) | 1.46 (0.75-2.83) | |
| High school graduate | 40.1 (3.3)e | 32.6 (4.3)e | 26.5 (5.0)e | 0.76 (0.63-0.92)g | 0.52 (0.40-0.68)g | 0.92 (0.64-1.33) | |
| Some college/AA degree | 49.1 (2.5) | 51.5 (3.4)e | 37.6 (4.6)e | 0.91 (0.79-1.05) | 0.88 (0.71-1.08) | 0.81 (0.59-1.11) | |
| College graduate (ref) | 52.2 (2.2) | 58.0 (3.0) | 50.1 (4.6) | (ref) | (ref) | (ref) | |
| Household income (US $) | |||||||
| ≤$35,000 (ref) | 37.9 (4.1) | 36.8 (4.2) | 25.8 (2.2) | (ref) | (ref) | (ref) | |
| $35,001-$50,000 | 45.5 (4.6)f | 48.5 (5.4)e | 36.8 (3.2)g | 1.15 (0.87-1.51) | 1.24 (0.90-1.69) | 1.04 (0.70-1.56) | |
| $50,001-$65,000 | 46.7 (4.7)g | 51.6 (6.0)e | 46.3 (4.2)e | 1.15 (0.87-1.51) | 1.34 (0.88-1.71) | 1.34 (0.86-2.09) | |
| $65,001-$80,000 | 44.0 (4.2)f | 54.9 (5.7)e | 43.8 (4.3)e | 0.91 (0.70-1.19) | 1.38 (0.99-1.90) | 1.24 (0.78-1.97) | |
| $80,001-$100,000 | 51.4 (3.8)e | 54.6 (5.7)e | 51.4 (4.8)e | 1.23 (0.95-1.59) | 1.19 (0.86-1.64) | 1.55 (0.95-2.53) | |
| >$100,000 | 52.2 (2.4)e | 57.1 (4.3)e | 50.4 (4.1)e | 1.28 (1.02-1.60)f | 1.24 (0.92-1.66) | 1.35 (0.84-2.17) | |
| Uses the internet to obtain information | |||||||
| Does not use | 0.0h | 0.0h | 0.2h | <0.01h | <0.01h | <0.01h | |
| Uses with someone’s help | 28.0 (6.3)e | 40.9 (6.3)e | 40.2 (6.4)e | 0.49 (0.35-0.68)e | 0.59 (0.44-0.80)e | 0.48 (0.34-0.67)e | |
| Uses by self (ref) | 51.0 (1.5) | 57.2 (2.2) | 56.2 (3.5) | (ref) | (ref) | (ref) | |
| Has access to a computer | |||||||
| No (ref) | 10.6 (4.9) | 9.7 (4.1) | 6.8 (2.6) | (ref) | (ref) | (ref) | |
| Yes | 49.6 (1.5)e | 53.8 (2.1)e | 46.5 (3.1)e | 1.91 (0.99-3.68) | 0.65 (0.31-1.36) | 0.49 (0.25-0.97)f | |
| 1 or more chronic condition | |||||||
| No (ref) | 39.2 (2.4) | 45.4 (2.2) | 27.7 (6.1) | (ref) | (ref) | (ref) | |
| Yes | 53.1 (1.8)e | 51.2 (1.1)f | 38.1 (2.8)g | 1.91 (1.67-2.18)e | 1.47 (1.19-1.82)e | 1.96 (1.38-2.78)e | |
| Model c-statisticsi | —j | — | — | 0.66 | 0.7 | 0.79 | |
aMoE: 95% margin of error around estimated percentage (95% confidence intervals can be created from percentage ± MoE).
bAOR: adjusted odds ratio from logistic regression model that includes older age within age group, gender, race/ethnicity (including other Asian and other race/ethnicity categories), education, household income, internet use, computer access, and 1 or more chronic condition.
cYounger age: 45 to 55 years, 66 to 70 years, 76 to 80 years; Older age: 56 to 65 years, 71 to 75 years, 81 to 85 years.
dRef: reference group for comparison of variable categories.
eSignificantly differs from reference group at P<.001.
fSignificantly differs from reference group at P<.05.
gSignificantly differs from reference group at P<.01.
h95% CI not applicable.
iThe model c-statistic assesses how well the full logistic regression model predicts which individuals used a Web-based resource for health information or advice during the past year.
jNot applicable.