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. 2022 Dec 7;23:1070. doi: 10.1186/s12891-022-06025-x

Table 2.

Radiological outcomes at different follow-up time points between groups

Outcomes Elder group Young group P value
distance of stem sinking (mm)
 3 months 2.10 ± 0.65 1.75 ± 0.41 0.002
 6 months 2.44 ± 0.49a 1.84 ± 0.43c  < 0.001
 12 months 2.53 ± 0.53b 1.96 ± 0.39d  < 0.001

Abbreviation: a represents P = 0.004 compared with 3 months in elder group. b represents P = 0.40 compared with 12 months in elder group. c represents P = 0.29 compared with 3 months in young group. d represents P = 0.15 compared with 6 months in young group