Skip to main content
. 2021 Feb 18;23(2):e25232. doi: 10.2196/25232

Table 3.

Comparison of age-weighted self-learning and related activity times of medical students before and after the national state of emergency (SOE) in Japan.

Measure Before SOE (N=473) Last 2 weeksa (N=473) P valueb
Activity (hours/day), mean (95% CI)



Stay at home 16.1 (15.7-16.6) 18.8 (18.5-19.2) <.001

Reading books 0.70 (0.58-0.82) 1.1 (0.96-1.2) <.001

Playing video games 1.5 (1.3-1.7) 2.1 (1.9-2.3) <.001

Self-learning 2.6 (2.4-2.8) 4.0 (3.7-4.2) <.001
Subjective mental health status, n (%)



Very good 85 (18.0) 39 (8.2) <.001

Good 171 (36.1) 58 (12.2) <.001

Fair 193 (40.8) 286 (60.5) <.001

Bad 18 (3.8) 76 (16.1) <.001

Very bad 6 (1.3) 14 (3.0) <.001

aThe base date of the last 2 weeks is the date when the participants answered the survey. The survey period was from June 8 to 14, 2020.

bP values were calculated with the Wilcoxon signed-rank test.