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. 2020 May 27;6(1):e17729. doi: 10.2196/17729

Table 2.

Pregraduate assessment of utilization during the control period compared to the exam period within 251 HeadToToe app downloads among medical students at the University of Geneva, Switzerland.

Assessment measurea Exam period
(May 2019)
Control period
(March and April 2019)
Difference P valueb
Daily activity, mean (SE)




Active devices 24.5 (1.8) 16.5 (1.9) 8.0 (2.8) .003

Minutes per user per day 8.2 (0.8) 5.1 (0.5) 3.1 (0.95) <.001

Total sessions per day 89.5 (8.3) 56.7 (5.4) 32.8 (9.5) <.001
Content usage, n




Documents consulted 1451 2305 N/A N/Ac

Videos consulted 1086 484 N/A N/A

aData were from automatic statistics collection with Yahoo’s Flurry Analytics.

bCalculated with an unpaired t test for continuous quantitative variables.

cN/A: Not applicable.