Fig. 2

Bland-Altman analysis of the differences between the hospital and prehospital TBSA estimations in the small (Fig. 2a) and large (Fig. 2b) burns groups. For each comparison, the mean value between the two estimations is plotted against their difference. The mean difference between the hospital and prehospital TBSA estimations were − 0.462 for the small and 0.429 for the large burns groups. The lower and upper limits of agreement were − 5 and 4% in the small burns group and − 10 and 11% in the large burns group