Table 1 Comparison of the demographics, FD symptoms and subtypes in the FD-IBS clinical overlap group with those of the FD alone group

Demographics

   Age (years; $\overline{x}$ ± s.d.)

42.91 ± 14.61

42.37 ± 14.84

0.70

   Female Gender (%)

79(52.3)

264(57.8)

0.24

Symptoms (%)

(score, $\overline{x}$ ± s.d.)

   Early satiation

58(38.4)

152(33.3)

0.25

(1.13 ± 1.52)

(0.95 ± 1.45)

0.21

   Postprandial fullness

115(76.2)

266(58.2)

<0.001**

(2.35 ± 1.49)

(1.72 ± 1.59)

<0.001**

   Epigastric pain

113(74.8)

342(74.8)

1.00

(2.24 ± 1.50)

(2.42 ± 1.58)

0.22

   Epigastric burning

49(32.5)

118(25.8)

0.11

(0.93 ± 1.43)

(0.73 ± 1.33)

0.14

Overall symptom score

6.65 ± 2.88

5.82 ± 2.76

0.002*

Subtypes(%)

   PDS alone

59(39.1)

164(35.9)

0.48

   EPS alone

41(27.2)

183(40.0)

0.004*

   PDS+EPS

51(33.8)

110(24.1)

0.02*