Table 1 Demographic characteristic of the study participants.

From: Prevalence and trigger factors of functional gastrointestinal disorders among male civil pilots in China

Characteristics

Description

Age (years)

33.83 ± 7.05

BMI (kg/m2)

23.84 ± 2.35

Race

Han

186 (87.74)

Minority

26 (12.26)

Marital status

Single

44 (20.75)

Married

168 (79.25)

Education

University

210 (99.02)

Postgraduate

2 (0.98)

Alcohol

No

123 (57.75)

Yes

68 (31.92)

Cessation

21 (9.86)

Smoke

No

101 (47.41)

Yes

104 (48.83)

Cessation

7 (3.29)

Flight level

Captain

25 (11.79)

First officer

77 (36.32)

Second officer

42 (19.81)

Pilot cadet

68 (32.08)

Flight hours within 1 month

< 10

52 (24.51)

10–19

89 (42.16)

≥ 20

71 (33.33)

Day flight hours within 1 month

< 10

104 (49.02)

≥ 10

108 (50.98)

Night flight hours within 1 month

< 10

170 (80.39)

≥ 10

42 (19.61)

Long voyage (≥ 8 h) frequency within 1 month

0

105 (49.53)

1–2

71 (33.49)

3–4

36 (16.98)

  1. Continuous variables were expressed by mean ± standard deviation and categorical variables were expressed by numbers (percentages).