Els van Meijel

47 Acute pain and posttraumatic stress symptoms | Chapter 3 Table 3.1 Sample characteristics and differences between boys and girls Total group ( n = 135) Girls ( n = 56, 41.5%) Boys ( n = 79, 58.5%) Difference Effect size d M SD Median Min-Max M SD Median Min-Max M SD Median Min-Max p Value a Age b 14.0 2.9 15.0 8–18 13.8 2.8 14.0 8–17 14.1 3.0 16.0 8–18 .34 c .10 CRIES score 15.2 13.3 12.0 0–61 18.9 15.1 16.5 0–61 12.5 11.3 11.0 0–47 .01 c .48 Worst pain 6.8 2.4 7.0 0–10 7.2 2.5 7.3 0–10 6.6 2.3 6.8 2–10 .10 c .25 ISS d 6.5 7.4 4.0 0–34 5.5 7.0 4.0 0–25 7.3 7.7 5.0 0–34 .06 c .24 Days in hospital 3.4 5.5 1.0 0–33 2.7 4.6 0.8 0–22 3.9 6.0 1.0 0–33 .08 c .22 Extremity fracture ( n, % ) 38 28 11 20 27 34 .08 e .57 CRIES Children’s Revised Impact of Event Scale, ISS Injury Severity Score, M mean, SD standard deviation a p Value of the difference between boys and girls b Age at the time of posttraumatic stress assessment c Mann–Whitney U test was used d ISS score of 1 boy is missing e Fisher’s Exact test was used