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Table 1 Descriptive statistics and matching of the groups

From: RFA measurements of survival midpalatal orthodontic mini-implants in comparison to initial healing period

 IG11LT11IG9LT9Statistical testSignificance
GenderFMFMFMFMChi-square0.696 n.s.
1010612811129
Age (years)15.61 ± 6.9616.77 ± 7.7515.54 ± 7.3116.21 ± 3.89Kruskal–Wallis test0.401 n.s.
Implants measured20181921  
Treatment time (years) 3.17 ± 0.96 2.84 ± 1.25t test0.067 n.s.
Vertical bone height4.87 ± 0.864.59 ± 0.875.28 ± 1.254.62 ± 1.10ANOVA0.237 n.s.