From: Relationship between Chinese medicine dietary patterns and the incidence of breast cancer in Chinese women in Hong Kong: a retrospective cross-sectional survey
Controls n = 202
Cases n = 202
Adjusted OR
95% CI
P value
Guangdong tea (Yum Cha)
Less than once per week
142
109
1.00
Reference
1–2 times per week
46
56
1.59
1.00–2.52
0.05*
>3 times per week
12
35
3.80
1.88–7.66
<0.001*