Spearman correlation coefficients between exposure variables (hourly lag0) on days that out-of-hospital cardiac arrests occurred in Copenhagen (1 January 2002–31 December 2010).

ap-value>0.05. otherwise p-value<0.05.
Top value is the Spearman correlation coefficient and the bottom value is the number of hours. Of the 96432 hours (on 4018 days) during the study period, 4657 OHCAs occurred on 4556 hours (on 2753 days).