Table 2

Participant characteristics by treatment completion* in the crossover tea study
Characteristic Completed (N = 32) Dropped out (N = 33)
(%) (%)
Age, mean (SD) 33 (12) 33 (12)
Male 44 42
Race/Ethnicity
 White 44 46
 African-American 9 36
 Hispanic 6 6
 Asian 38 6
 Other 3 6
Smoking statusa
 Current 34 64
 Former 6 -
 Never 60 36
Regular alcohol intake 25 21
Regular tea intake 41 33
Regular coffee intake 52 41
Regular carbonated beverages intake 32 49
Fruit/vegetable servings/day, mean (SD) 2.4 (1.3) 2.7 (1.7)
BMI, mean (SD) 24.1 (3.6) 24.2 (5.8)

aP value <0.05 for comparison between “completed” and “dropped out”.

b 0.05 ≤ P value < 0.10 for comparison between “completed” and “dropped out”.

c 0.10 ≤ P value < 0.15 for comparison between “completed” and “dropped out”.

* Treatment completion is defined as completion of all four crossover treatments.

Regular intake <2 servings per day. Participants reporting ≥2 servings per day consumption of tea, coffee, carbonated beverages, or alcohol were excluded from the trial.

Dash et al.

Dash et al. BMC Complementary and Alternative Medicine 2012 12:96   doi:10.1186/1472-6882-12-96

Open Data