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. 2023 May 5;25:e42287. doi: 10.2196/42287

Table 3.

Logistic regression for low digital competencea (odds ratios [ORs] and their 95% CIs).


 Model A Model B Model C Model D

OR (95% CI) P value OR (95% CI) P value OR (95% CI) P value OR (95% CI) P value
Near visionb
<.001
N/Ac
N/A
<.001

Highest tertile (good) 1 (N/A)
N/A
N/A
1 (N/A)

Average 1.00 (0.72-1.38)
N/A
N/A
0.91 (0.65-1.28)

Lowest tertile (poor) 2.40 (1.76-3.27)
N/A
N/A
2.18 (1.57-3.02)
Distant visionb
<.001
N/A
N/A
<.001

Highest tertile (good) 1 (N/A)
N/A
N/A
1 (N/A)

Average 1.23 (0.90-1.70)
N/A
N/A
1.18 (0.82-1.70)

Lowest tertile (poor) 2.15 (1.50-3.06)
N/A
N/A
2.14 (1.43-3.19)
The chair stand test
N/A
.02
N/A
.04

Highest tertile (good) N/A
1 (N/A)
N/A
1 (N/A)

Average N/A
1.32 (0.97-1.80)
N/A
1.40 (1.01-1.94)

Lowest tertile (poor) N/A
1.68 (1.17-2.41)
N/A
1.57 (1.06-2.31)
Hand grip strength
N/A
.37
N/A
.49

Highest tertile (good) N/A
1 (N/A)
N/A
1 (N/A)

Average N/A
0.88 (0.65-1.17)
N/A
0.84 (0.62-1.13)

Lowest tertile (poor) N/A
1.08 (0.77-1.52)
N/A
0.93 (0.66-1.32)
Abduction of the upper arms
N/A
<.001
N/A
.02

Normal N/A
1 (N/A)
N/A
1 (N/A)

Restricted or failed N/A
2.05 (1.37-3.07)
N/A
1.74 (1.10-2.76)
Word list memoryd
N/A
N/A
<.001
<.001

Highest tertile (good) N/A
N/A
1 (N/A)
1 (N/A)

Average N/A
N/A
2.03 (1.39-2.97)
1.98 (1.34-2.92)

Lowest tertile (poor) N/A
N/A
3.92 (2.77-5.54)
3.41 (2.32-5.03)
Word list recalld
N/A
N/A
<.001
<.001

Good or average N/A
N/A
1 (N/A)
1 (N/A)

Poor N/A
N/A
2.45 (1.69-3.53)
2.05 (1.39-3.04)

aAll analyses adjusted for age and sex.

bTo avoid multicollinearity near vision and distant vision were analyzed in separate analyses.

cN/A: not applicable.

dTo avoid multicollinearity, word list memory and word list recall were analyzed separately.