Table 5. Binomial regression analysis between absolute reduction in COPD exacerbations and other parameters.

^a 0 = low risk; 1 = high risk. ^b 0 = incomplete or no vaccination; 1 = fully vaccinated.

SE: standard error; CI: confidence interval.

	B	SE	Wald	Exp(B)	95% CI for Exp(B)		p
					Lower	Upper
Total riska	1.025	0.373	7.534	2.43 (1.21-4.89)	1.340	5.791	0.006
Vaccination statusb	1.054	0.419	6.333	2.19 (1.00-4.76)	1.263	6.525	0.012
Gender	0.299	0.468	0.408	0.79 (0.38-1.67)	0.539	3.375	0.523
Age	-0.051	0.021	6.053	0.79 (0.38-1.67)	0.913	0.990	0.014
Constant	2.786	1.345	4.292	0.80			0.038