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Table 1 Descriptive statistics of age and overjet at T1, T2 and changes from T1 – T2

From: Relationship between back posture and early orthodontic treatment in children

Age in years n M SD 95% CI (low – high) MD 25% Perc 75%
Perc
Min Max
T1 54 8.2 1.2 7.9–8.6 8.3 7.3 9.2 4.3 10.7
T2 54 10.1 1.3 9.7–10.4 10.1 9.0 10.9 6.1 13.1
treatment time T1 – T2 54 1.8 0.5 1.7–1.9 1.8 1.6 1.9 0.8 3.5
Overjet in mm n M SD 95% CI (low – high) MD 25%
Perc
75%
Perc
Min Max
T1 54 11.1 1.8 10.6–11.6 10.5 10.0 12.0 8.0 18.0
T2 54 7.2 2.1 6.6–7.7 7.0 6.0 8.5 3.0 14.0
overjet correction T1 – T2 54 −3.9 2.1 −4.5 – −3.3 −3.5 −4.6 −2.5 −11.0 0.5
  1. M arithmetic mean, SD standard deviation, CI confidence interval, MD Median, Perc Percentile, Min Minimum, Max Maximum
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