Table 4.

Univariate and multivariable logistic regression analysis of triggers for RCC.

	Univariable analysis			Multivariable analysis
Characteristics	OR	95% CI	p	OR	95% CI	p
Sex	0.711	0.526–0.960	0.026	0.720	0.530–0.990	0.041
Age	0.990	0.979–1.002	0.102	0.990	0.980–1.010	0.326
Number of chemical triggers	1.130	0.992–1.289	0.067	1.090	0.950–1.260	0.223
Number of mechanical triggers	1.251	1.050–1.491	0.012	1.230	1.030–1.480	0.022
Number of meal triggers	1.647	1.260–2.153	<0.001	1.480	1.120–1.960	0.005
Thermal trigger-Cold air	1.041	0.771–1.405	0.792	–	–	–

CI, confidence interval; OR, odds ratio; RCC, refractory chronic cough.