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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Disabil Rehabil. 2011 Sep 27;34(1):84–89. doi: 10.3109/09638288.2011.587589

Table 2.

Changes in the Size of Oral Aperture using the Intent to Treat Analysis (N=48)

Group
Intervention (n1=26) Control (n2=22)

Oral aperture Measure Variable Mean SD Min Max Med P-value for within group difference* Mean SD Min Max Med P-value for within group difference* P-value for between group difference
1st change (F1-B) 1.44 2.83 −3.30 8.70 0.67 0.02 −0.09 3.16 −5.30 8.30 0.00 0.71 0.04
2nd change (F2-F1) 0.71 3.38 −12.70 5.00 1.33 0.04 2.35 3.53 −6.00 9.00 2.00 0.01 0.88
Overall change (F-B) 2.14 2.88 −4.00 11.00 2.00 0.001 2.26 4.28 −3.33 15.67 0.50 0.02 0.19

SD=standard deviation, Min=minimum, Max=maximum, Med=median, B=baseline, F1=3 months, F2=6 months.

*

Two-sided P-value using Wilcoxon signed rank test for each change

One-sided P-value for significantly greater changes among intervention group when compared to control group using Mann-Whitney U-test

6 months measure recorded (F2, if non-missing, F1, otherwise)