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. 2021 Aug 28;22:742. doi: 10.1186/s12891-021-04632-8

Table 1.

Comparison of the demographics

Meniscectomy group (n = 90) Conservative group (n = 56) P-value
Sexa (M/F) 31 / 59 17 / 39 0.61
Ageb (y) 55.5 ± 8.6 57.7 ± 8.1 0.13
BMIb (kg/m2) 25.5 ± 3.8 25.4 ± 2.0 0.84
Follow-up durationb (y) 6.4 ± 3.7 6.1 ± 4.0 0.60

aPearson’s chi-square test, bIndependent t-test. Data are presented median ± standard deviation. The P-values reflect the results of inter-group comparisons, with p < 0.05 indicating significance.BMI Body mass index;