Table 4.

Relationship between airflow obstruction and chronic kidney disease according to severity of airflow obstruction

Logistic regression analysis	Normal lung function (n = 10,669)	Airflow obstruction
		GOLD stage I (n = 452)	GOLD stage II–IV (n = 466)
n (%) with chronic kidney disease	1,091 (10.2)	65 (14.4)	69 (14.8)
Unadjusted OR (95% CI)	1.00	1.48 (1.13–1.93)	1.53 (1.17–1.99)
Adjusted OR (95%)	1.00	0.89 (0.66–1.20)	1.01 (0.75–1.35)

Logistic regression analysis was adjusted for age, BMI, hypertension, diabetes, hyper-LDL-cholesterolemia, smoking, physical activity, and alcohol intake

OR Odds ratio, CI confidence intervals