Table 1

Subject characteristics according to assigned treatment group

Randomized Treatment Group

Sham Manipulation

Real Manipulation

Placebo Echinacea

Real Echinacea

Placebo Echinacea

Real Echinacea

Total Sample

Characteristic

%

%

%

%

%


Age, years (median ± SD)

1.5 ± 0.9

1.5 ± 0.5

1.6 ± 0.5

1.6 ± 0.7

1.5 ± 0.7

Ethnicity

White, non Hispanic

45%

41%

42%

50%

44%

Hispanic

41

41

38

36

39

Native American

9

14

4

-

7

Black, non Hispanic

5

5

4

9

6

Asian

-

-

8

5

3

Other

-

-

4

-

1

Male gender

68

59

50

50

57

Breastfed ≥ 6 mo.

27

23

29

32

28

Sibling(s) in home

64

68

54

50

59

AOM ≥ 5× in past year

32

64

30

23

37

Daycare attendance

41

64

58

64

57

Cigarette smoke exposure

23

18

25

14

20


Total number in group

N = 22

N = 22

N = 24

N = 22

N = 90


Wahl et al. BMC Complementary and Alternative Medicine 2008 8:56   doi:10.1186/1472-6882-8-56

Open Data