Table 3.

Intraobserver agreement

	Linear analysis			Bland-Altman analysis
Unit	Correlation	Slope	Intercept	Bias*	MOE*	Slope	Intercept
Coughs	0.9841	1.0502	−0.0061	0.0789	1.5137	0.0654	−0.0346
Fixed cough seconds	0.9915	1.0182	0.0052	0.0299	0.8350	0.0267	−0.0067
Mobile cough seconds	0.9938	1.0108	0.0092	0.0213	0.5976	0.0170	0.0020

*Average of the differences between the paired cough counts; the margin of error is twice the SD of these differences.

MOE, margin of error.