Table 1.
Characteristics of the studied population.
| Country | Province or state |
Size of user populationa | Proportion of women (%)a | Mean age (years) | Lockdown rules | Lockdown date | Baseline steps per day |
Lockdown steps per day | Decrease in steps (%) |
P value |
| Australia | N/Ab | 10,000 | 42 | 42 | Partial | 2020-03-23 | 5765 | 5302 | 8.0 | <.001 |
| Canada | N/A | 10,000 | 38 | 43 | None | N/A | 5049 | 4708 | 6.8 | <.001 |
| China | N/A | 10,000 | 19 | 36 | Total | 2020-01-23 | 4108 | 3034 | 26.1 | <.001 |
| China | Hubei | 100 | 14 | 35 | Total | 2020-01-23 | 4375 | 1943 | 55.6 | <.001 |
| France | N/A | 100,000 | 43 | 43 | Total | 2020-03-17 | 4604 | 3342 | 27.4 | <.001 |
| Germany | N/A | 100,000 | 37 | 46 | Partial | 2020-03-16 | 5349 | 5416 | –1.3 | <.001 |
| Ireland | N/A | 10,000 | 38 | 42 | Total | 2020-03-28 | 5326 | 5356 | –0.6 | <.001 |
| Italy | N/A | 10,000 | 31 | 45 | Total | 2020-03-10 | 5445 | 3918 | 28.0 | <.001 |
| Italy | Lodi | 100 | 29 | 45 | Total | 2020-02-21 | 5640 | 5035 | 10.7 | <.001 |
| Japan | N/A | 100,000 | 29 | 43 | Total | 2020-04-07 | 5460 | 4581 | 16.1 | <.001 |
| Netherlands | N/A | 10,000 | 38 | 44 | None | N/A | 5193 | 5180 | 0.3 | <.001 |
| Singapore | N/A | 1000 | 33 | 41 | None | N/A | 6127 | 5860 | 4.3 | <.001 |
| Spain | N/A | 10,000 | 36 | 46 | Total | 2020-03-15 | 6215 | 3638 | 41.5 | <.001 |
| Sweden | N/A | 10,000 | 34 | 44 | None | N/A | 5681 | 6004 | –5.7 | <.001 |
| Switzerland | N/A | 10,000 | 40 | 44 | Partial | 2020-03-16 | 5325 | 4947 | 7.1 | <.001 |
| United Kingdom | N/A | 100,000 | 39 | 43 | Total | 2020-03-23 | 5690 | 5249 | 7.8 | <.001 |
| United States | N/A | 100,000 | 43 | 43 | Partial | 2020-03-22 | 5287 | 4912 | 7.1 | <.001 |
| United States | California | 100,000 | 38 | 43 | Total | 2020-03-19 | 5508 | 5013 | 9.0 | <.001 |
| United States | Florida | 10,000 | 44 | 46 | Partial | 2020-03-17 | 5303 | 5225 | 1.5 | <.001 |
| United States | Illinois | 10,000 | 41 | 42 | Total | 2020-03-21 | 5415 | 4966 | 8.3 | <.001 |
| United States | New Jersey | 10,000 | 38 | 43 | Total | 2020-03-21 | 5297 | 4693 | 11.4 | <.001 |
| United States | Pennsylvania | 10,000 | 43 | 44 | Partial | 2020-03-19 | 5186 | 4974 | 4.1 | <.001 |
| United States | New York | 10,000 | 39 | 42 | Partial | 2020-03-22 | 5776 | 4499 | 22.1 | <.001 |
| United States | Nevada | 1000 | 42 | 45 | Partial | 2020-03-21 | 5391 | 4902 | 9.1 | <.001 |
aThe number of users having activity data on a given day is subject to variation; the numbers given in the table are representative orders of magnitude of the daily number of users having activity data.
bNot applicable.