Correlation between severity of endoscopic findings and apnea-hypopnea index in patients with gastroesophageal reflux disease and obstructive sleep apnea

Table 3 Relationship between the severity of endoscopic findings, clinical parameters and GER-related symptoms.

Variable	GERD “0”	GERD “1”	GERD “2”	GERD “3”	GERD “4”	P1
Number of cases	11	13	20	7	6
Age (yr)	52 (42-53)2	53 (45-55)	53 (43-59)	53 (48-60)	50 (48-50)	0.79
Gender (women,%)	18	31	35	29	0	0.197
BMI	29.5 (26.9-36.1)	33.9 (31.2-37.4)	32.3 (28.6-35.0)	37.8 (33.2-40.6)	40.8 (35.8-47.3)	0.04
Epworth	11 (8-14)	9 (7-12)	12.5 (10-16.5)	15 (14-19)	17 (16-18)	0.006
AHI	14 (8-26)	11.2 (10-35)	31.5 (16.4-66.1)	65 (56.7-99.3)	63.4 (45-83)	0.0001
GER-related symptoms +(%)	18.2	61.5	60	57.1	50	0.178

¹In case of continuous variable one-way ANOVA and dichotomous variable χ²-test for trend (P<0.05 significant) 2median (interquartile range).