Table 5. Test-retest reliability for the frequency-magnitude scores of each subscale and the total scores of the CHIEF-BR questionnaire (N=23).

Score	ICC	CI (95%)	p value
Frequency-magnitude score
Policies	0.71	0.42-0.87	<0.0001*
Physical/Structural	0.93	0.84-0.97	<0.0001*
Work/School	0.89	0.76-0.95	<0.0001*
Attitudes/Support	0.89	0.76-0.95	<0.0001*
Services/Assistance	0.85	0.69-0.94	<0.0001*
Total
Frequency	0.93	0.83-0.97	<0.0001*
Magnitude	0.92	0.82-0.96	<0.0001*
Frequency-Magnitude	0.92	0.83-0.97	<0.0001*

^ICC=intraclass correlation coefficient

^CI= Confidence interval

^*=statistically significant ICC.