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. 2021 May 26;9(5):e26037. doi: 10.2196/26037

Table 2.

Baseline psychological outcomes, physical activity, and perceived effects of COVID-19.

Outcome, physical activity, or effect Mean (SD)
Psychological outcome

Stress scorea 18.12 (6.29)

Depression scoreb 8.89 (4.12)

Anxiety scoreb 5.87 (3.61)
Physical activity (days/week)c

Pre–COVID-19 physical activity 4.87 (2.04)

Current physical activity 4.89 (2.29)
Perceived effectd of COVID-19 on:

Stress 1.82 (0.80)

Mental health 2.07 (0.83)

Physical activity 2.72 (1.29)

aStress was measured using the Perceived Stress Scale; summed scores range from 0 to 40, with higher scores indicating higher levels of perceived stress.

bDepression and anxiety were measured using the depression and anxiety subscales, respectively, of the Hospital Anxiety and Depression Scale; summed scores range from 0 to 21 (normal: 0-7; borderline abnormal: 8-10; abnormal: 11-21).

cParticipants self-reported how many days per week (on a scale of 0 to 7) of physical activity they participated in.

dParticipants responded to investigator-developed items; response scores range from 1 to 5, with higher scores indicating higher perceived effects of COVID-19.