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. 2021 Apr 14;23(4):e24577. doi: 10.2196/24577

Table 3.

Associations among demographic variables, socioeconomic status, and chronic diseases with the eHealth literacy scorea among participants seeking web-based information on COVID-19 (N=1040).

Characteristics Mean (SD) Unadjusted β (95% CI) Adjusted β (95% CI)b SIIc
Sex N/Ad

Male 26.00 (7.51) 0 0

Female 26.19 (7.86) 0.19 (–0.75 to 1.13) –0.01 (–0.83 to 0.80)
Age (years) N/A

18-39 28.84 (6.07) 0 0

40-59 27.18 (6.12) –1.67 (–2.61 to –0.72)e –0.77 (–1.82 to 0.28)

≥60 19.60 (8.79) –9.24 (–10.33 to –8.16)f –5.48 (–6.91 to –4.05)f
Marital status N/A

Never been married 28.99 (5.93) 0 0

Married/cohabitating 25.07 (7.93) –3.92 (–4.95 to –2.90)f –1.03 (–2.09 to 0.02)

Divorced/separated/widowed 23.65 (9.07) –5.35 (–7.64 to –3.06)f –1.83 (–3.93 to 0.27)
Education 13.27f

Primary or below 17.56 (8.45) 0 0

Secondary 25.40 (6.80) 7.84 (6.42 to 9.26)f 3.58 (1.98 to 5.18)f

Tertiary or above 29.98 (6.34) 12.42 (10.92 to 13.92)f 6.22 (4.39 to 8.06)f
Income (HK $)g 7.30f

≤10,000 23.86 (8.27) 0 0

10,001-20,000 25.38 (7.63) 1.52 (0.38 to 2.65)e –0.40 (–1.69 to 0.88)

20,001-30,000 27.74 (6.74) 3.88 (2.57 to 5.19)f 0.62 (–0.86 to 2.10)

>30,000 29.67 (6.07) 5.81 (4.41 to 7.22)f 2.25 (0.63 to 3.88)e
Employment status N/A

Economically inactive 23.40 (8.75) 0 0

Economically active 27.16 (6.97) 3.76 (2.74 to 4.78)f 0.39 (–0.89 to 1.66)
Chronic diseases N/A

None 26.42 (7.50) 0 0

Any 22.71 (8.89) –3.71 (–5.35 to –2.07)f –0.85 (–2.31 to 0.60)

aeHealth literacy scores ranged between 8 and 40, with higher scores indicating higher eHealth literacy.

bMutually adjusted for the variables in the table.

cSII: slope index of inequality; SII refers to the absolute difference in the eHEALS score between the most advantaged and most disadvantaged groups, a higher score indicating a higher disparity in the eHEALS score.

dN/A: not applicable.

eP<.01.

fP<.001.

gUS $1=HK $7.8.