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Table 4 Comparison of pain level between the two groups (\( \overline{x}\pm s \))

From: Comparative efficacy and safety profile for the treatment of humeral bone cysts in children: curettage and mixed bone grafting either with or without elastic intramedullary nailing

Group n Before operation 1 month after operation 3 months after operation 6 months after operation 9 months after operation 12 months after operation 16 months after operation
Elastic nailing group 25 3.9 ± 0.2 2.0 ± 0.2 1.7 ± 0.1 1.0 ± 0.2 0.4 ± 0.1 0.3 ± 0.1 0.3 ± 0.1
Control group 23 3.9 ± 0.2 2.4 ± 0.2 2.0 ± 0.2 1.5 ± 0.1 1.1 ± 0.1 0.9 ± 0.1 0.8 ± 0.1
t value   0.517 − 8.246 − 6.958 − 11.741 − 28.527 − 24.451 − 34.959
P value   0.608 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001
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