. 2016 Dec 15;6(2):175–180. doi: 10.3892/br.2016.828

Table I.

Clinical characteristics of study subjects (n=88).

Characteristic	Total (n=88)	RE (n=20)	NERD (n=25)	FD (n=43)
Patient profile
Age (years)	60.2 (±14.7)^b	59.1 (±15.1)^b	61.7 (±15.2)^b	59.8 (±14.4)^b
Gender
Male	30 (34.1)^a	13 (65.0)^a	7 (28.0)^a	10 (23.3)^a
Female	58 (65.9)^a	7 (35.0)^a	18 (72.0)^a	33 (76.7)^a
BMI (kg/m²)	21.9 (±3.3)^b	24.0 (±2.6)^b	22.3 (±2.9)^b	20.8 (±3.4)^b
Smoking
Smoker	9 (10.2)^a	4 (20.0)^a	2 (8.0)^a	3 (7.0)^a
Non-smoker	79 (89.8)^a	16 (80.0)^a	23 (92.0)^a	40 (93.0)^a
Alcohol consumption
Drinker	22 (25.0)^a	9 (45.0)^a	6 (24.0)^a	7 (16.3)^a
Non-drinker	66 (75.0)^a	11 (55.0)^a	19 (76.0)^a	36 (83.7)^a
H. pylori
H. pylori infection
Positive	8 (9.1)^a	1 (5.0)^a	4 (16.0)^a	3 (7.0)^a
Negative	52 (59.1)^a	15 (75.0)^a	11 (44.0)^a	26 (60.5)^a
Negative after eradication	28 (31.8)^a	4 (20.0)^a	10 (40.0)^a	14 (32.5)^a
Upper GI findings
Reflux esophagitis
Yes	20 (22.7)^a
No	68 (77.3)^a
LA-grade
A	9
B	7
C	3
D	1
Hiatal hernia
Yes	51 (58.0)^a	18 (90.0)^a	7 (28.0)^a	26 (60.5)^a
No	37 (42.0)^a	2 (10.0)^a	18 (72.0)^a	17 (39.5)^a
Endoscopic gastric mucosal atrophy	1.7 (±1.8)^b	1.3 (±1.6)^b	1.8 (±1.8)^b	1.8 (±1.9)^b

Number (%)

median (mean ± standard deviation); RE, reflux esophagitis; NERD, non-erosive reflux disease; FD, functional dyspepsia; BMI, body mass index; H. pylori, Helicobacter pylori; GI, gastrointestinal; LA-grade, Los Angeles grade.