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. 2020 Sep 3;22(9):e19471. doi: 10.2196/19471

Table 4.

Stated willingness of internet-using adults aged ≥18 years in the United States in March 2020 to use home and clinic blood sample specimen collection testing modalities on themselves as part of a COVID-19 research study (N=1435). All survey questions were 5-point Likert scale items where 1=strongly disagree, 2=disagree, 3=undecided, 4=agree, 5=strongly agree. Kruskal-Wallis tests and Spearman rank correlation coefficients were used to assess response differences by characteristic.

Characteristic

Home: blood sample Clinic: blood sample



Mean (SD) Median (IQR) P valuea Mean (SD) Median (IQR) P value
Overall 3.8 (1.3) 4 (3-5) N/Ab 3.6 (1.3) 4 (3-5) N/A
Gender >0.99




>0.99

Female 3.8 (1.3) 4 (3-5)
3.5 (1.3) 4 (3-5)

Male 3.9 (1.3) 4 (3-5)
3.7 (1.3) 4 (3-5)

Other 4.1 (1.3) 5 (4-5)
3.6 (1.2) 4 (3-5)
Age (years) <0.001




>0.99

18-29 3.5 (1.4) 4 (2-5)
3.5 (1.4) 4 (3-5)

30-49 4.0 (1.2) 4 (3-5)
3.7 (1.3) 4 (3-5)

50-64 4.1 (1.1) 5 (3-5)
3.6 (1.3) 4 (3-5)

≥65 4.0 (1.2) 4 (3-5)
3.7 (1.3) 4 (3-5)
Race/ethnicity >0.99




>0.99

Hispanic 3.6 (1.4) 4 (3-5)
3.7 (1.2) 4 (3-5)

Asian/Pacific Islander 3.8 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)

Non-Hispanic Black 3.6 (1.4) 4 (3-5)
3.5 (1.4) 4 (2-5)

Non-Hispanic White 3.9 (1.3) 4 (3-5)
3.5 (1.3) 4 (3-5)

Other 3.7 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)
Education >0.99




>0.99

College, postgraduate,
or professional school
4.0 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)

Some college, associate's degree, or technical school 3.9 (1.2) 4 (3-5)
3.4 (1.2) 4 (3-4)

High school/GEDc 3.7 (1.3) 4 (3-5)
3.5 (1.4) 4 (2-5)

Did not finish high school 3.9 (1.2) 4 (3-5)
3.7 (1.3) 4 (3-5)
Annual income (US $) 0.01




0.65

<24,000 3.9 (1.3) 4 (3-5)
3.7 (1.2) 4 (3-5)

24,000 to <50,000 4.0 (1.2) 4 (3-5)
3.5 (1.3) 4 (3-5)

50,000 to <75,000 3.8 (1.3) 4 (3-5)
3.7 (1.3) 4 (3-5)

≥75,000 4.2 (1.1) 5 (4-5)
3.7 (1.3) 4 (3-5)

Don't know 3.5 (1.4) 4 (3-5)
3.5 (1.3) 3 (3-5)
How likely do you think it is you have COVID-19 now? >0.99




>0.99

Very unlikely 3.9 (1.3) 4 (3-5)
3.4 (1.4) 4 (2-5)

Unlikely 3.8 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)

Somewhat likely 3.8 (1.3) 4 (3-5)
3.7 (1.2) 4 (3-5)

Likely/very likely 3.5 (1.5) 4 (3-5)
3.6 (1.5) 4 (3-5)
Stigma index score >0.99




>0.99

0 3.9 (1.3) 4 (3-5)
3.7 (1.3) 4 (3-5)

1-2 3.8 (1.4) 4 (3-5)
3.5 (1.4) 4 (2-5)

≥3 3.7 (1.4) 4 (2-5)
3.4 (1.4) 4 (2-5)
Knowledge index score >0.99




>0.99

<12 3.8 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)

12-13 3.9 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)

14 3.8 (1.3) 4 (3-5)
3.5 (1.4) 4 (3-5)
Symptoms >0.99




>0.99

1 or more symptoms 3.8 (1.3) 4 (3-5)
3.6 (1.3) 4 (3-5)

None 3.9 (1.3) 4 (3-5)   3.5 (1.3) 4 (3-5)  

aP values were adjusted for multiple comparisons using the Bonferroni-Holm method.

bN/A: not applicable.

cGED: General Education Development.