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. 2021 Apr 30;6(2):e20.00122. doi: 10.2106/JBJS.OA.20.00122

TABLE II.

Descriptive Data and Correlations Between Baseline Variables*

Variable Mean SD Range Correlations with Other Variables: Kendall R
No. Description 1 2 3 4 5 6 7 8
1 Age in yr 14.60 1.87 10-20 −0.19 −0.01 0.03 0.08 0.14 0.10 0.07
2 % female 86% −0.02 0.09 −0.05 0.02 0.05 −0.11
3 Length of hospital stay in days 5.8 1.4 3-12 0.03 0.07 0.10 0.001 −0.01
4 Baseline NRS 2.8 2.3 0-9 0.24 0.13 0.22 0.08
5 PCS-C 18.7 9.6 0-44 0.24 0.33 0.04
6 Child state anxiety 34.5 7.5 6-56 0.37 0.04
7 Child trait anxiety 34.9 7.3 9-57 0.09
8 PCS-P 22.2 9.1 0-52
*

SD = standard deviation, NRS = numerical rating scale, PCS-C = Pain Catastrophizing Scale-Child Form, and PCS-P = Pain Catastrophizing Scale-Parent Form.

P < 0.01.

P < 0.05.