Correction

Hanaki N, Yamashita K, Kunisawa S, et al. Effect of the number of request calls on the time from call to hospital arrival: a cross-sectional study of an ambulance record database in Nara prefecture, Japan. BMJ Open 2016;6:e012194.

The baseline patient characteristics were compared using analysis of variance (ANOVA), not the Kruskal–Wallis test. Therefore the corrected Table 1 footnote should read:

*P-value by ANOVA

P-value by Student's t-test

SD: standard deviation, Qu: quartile, ACS: acute coronary syndromes, CPA: Cardiopulmonary arrest,

DOC: disturbance of consciousness, request call: request call to hospital for transportation

The detailed information about each area are not available for disclosing, because of data sharing policy.

In table 3 the column header "Time from call to hospital arrival" should read "Time for request call". The corrected Table 3 is shown below.

Table 3

The number and the time for request call categorized...

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