Hypertension
Conditions
Keywords
hypertension, immigrant, dietary intervention, lifestyle modification
Brief summary
The study examined the feasibility of the Dietary Approach to Stop Hypertension with Sodium (Na) Reduction for Chinese Canadian (DASHNa-CC) intervention and its potential effects on blood pressure, health-related quality of life, and health service utilization. Half of participants received usual care while the other half received the DASHNa-CC intervention.
Detailed description
Hypertension has been identified as the most important risk factor for cardiovascular diseases and accounts for a large proportion of stroke, myocardial infarction and heart failure in the Chinese population. While unhealthy diet has been identified as a modifiable risk factor for hypertension, there is a lack of culturally sensitive dietary intervention targeting Chinese Canadians. The 8-week DASHNa-CC intervention incorporated Dietary Approach to Stop Hypertension (DASH) diet, sodium reduction with the food therapy of Traditional Chinese Medicine, and included an intervention manual, two sessions of classroom instruction delivered in Mandarin, and a 20-minute telephone follow-up.
Interventions
BEHAVIORALDASHNa-CC
The 8-week DASHNa-CC intervention incorporated Dietary Approach to Stop Hypertension (DASH) diet, sodium reduction with the food therapy of Traditional Chinese Medicine, and included an intervention manual, two sessions of classroom instruction delivered in Mandarin, and a 20-minute telephone follow-up.
BEHAVIORALusual care
education booklet, encouragement of physician visit, use of public health resources if needed
Sponsors
University of Toronto
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
45 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* were at least 45 years old; * had a systolic blood pressure 140 to 159 mmHg, or a diastolic blood pressure 90 to 99 mmHg, based on pre-intervention baseline assessment; * were able to understand (listen) and speak in Mandarin, read and write in Chinese; and * had access to a telephone.
Exclusion criteria
* used antihypertensive medications or other medications that raise or lower blood pressure during the previous three months; * used TCM or professional TCM counselling to decrease blood pressure during the previous three months; * used insulin or oral hypoglycemic agents during the previous three months; * had a history of a cardiovascular event (stroke, myocardial infarction, percutaneous transluminal coronary angioplasty, coronary artery bypass surgery, or other arteriosclerotic cardiovascular disease related therapeutic procedure) during the previous three months; * had a history of congestive heart failure; * had a cancer diagnosis or treatment during the past two years; * had special dietary requirements; * were pregnant, breast feeding, or planned for pregnancy prior to the anticipated end of study; * were a household member of another DASHNa-CC participant; or * planned to leave the area prior to the anticipated end of study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| blood pressure | 8 weeks post randomization | systolic and diastolic blood pressure |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| health related quality of life | 8 weeks post randomization | used SF-36v2 |
Outcome results
None listed