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. 2019 Jun 29;109(3):393–399. doi: 10.1007/s00392-019-01520-z

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Transportation times according to daytime, weekday, and month. Transportation times (minutes) are shown according to hour of the day (clusters of 4 h, upper row); weekday (middle row); and month (bottom row). Left column: patient call to ambulance arrival at site (call-to-site); mid column: ambulance arrival at site-to-door; right column: patient call-to-door. Call-to-site, site-to-door, and call-to-door were prolonged between 00:00 and 04:00 (p < 0.001); the shortest call-to-site, site-to-door, and call-to-door were on Sundays (call-to-site: p = 0.013, site-to-door: p < 0.001, call-to-door: p < 0.001). Month did not significantly impact transportation times (p > 0.05) (note: call-to-site for weekday and month is shown as mean rank (as median minutes are equal for each day and month, i.e., 9 min)