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Table 1 Descriptive statistics of the entire data collected, including the total number of the patient collective, division into children/adolescents with and without SHCNs, and the p value of the Mann–Whitney U test

From: Orthodontic treatment of children/adolescents with special health care needs: an analysis of treatment length and clinical outcome

 

Total N/median/min/max

SHCNs group N/median/min/max

NSHCNs group N/median/min/max

p*

PAR pre treatment

58/19/4/49

29/21/10/49

29/17/4/31

0.037

PAR post treatment

58/2/0/41

29/6/1/41

29/0/0/8

0.000

PAR score reduction

58/13.5/-2/33

29/11/-2/33

29/16/4/31

0.053

AC pre treatment

58/7/1/10

29/9/4/10

29/5/1/10

0.000

AC post treatment

58/2/1/10

29/3/1/10

29/1/1/6

0.000

AC score reduction

58/4/0/9

29/4/0/9

29/4/0/7

0.838

Overall treatment time

58/48/4/186

29/50/4/186

29/48/6/126

0.451

Number of appointments

58/32.5/5/73

29/36/5/70

29/31/6/73

0.652

Number of moderate chair time appointments

58/17/0/45

29/13/0/36

29/21/1/45

0.001

Number of considerable chair time appointments

58/15.5/3/56

29/22/3/56

29/12/5/32

0.048

Age at treatment start

58/11/3/18

29/11/3/15

29/12/6/18

0.028

Age at treatment end

58/15/6/22

29/14/8/20

29/16/6/22

0.025

  1. *p-value of the Mann–Whitney U test (comparison of children/adolescents with and without SHCNs).