Table 1

Baseline demographic characteristics of study participants in an investigation of perceptions of flatulence from beans

Cross-over trials

Parallel arm trial


3 × 3 cross-over

Pinto/BEP

Pinto/Black eye/Control

2 × 2 cross-over

BB

Baked bean/Control

PBPA

Pinto bean

Soup (control)


n

17

29

40

40


Male

41% (7)

41% (12)

50% (20)

50% (20)

Female

Race

Hispanic

59% (10)

94% White (16)

18% (3)

59% (17)

83% White (24)

7% (20)

50% (20)

100% White (40)

n/a

50% (20)

97.5% White (39)

n/a

Age, years

43.3 ± 12.6

44.9 ± 11.5

40.7 ± 10.0

39.2 ± 12.0

BMI, kg/m2

28.7 ± 5.1

26.5 ± 4.7

26.0 ± 3.0

31.9 ± 3.4


a Values are mean ± SD.

Winham and Hutchins Nutrition Journal 2011 10:128   doi:10.1186/1475-2891-10-128

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