Table 1 Explanatory variables included in the stepwise selection algorithm for self-reported, doctor-diagnosed hypertension
Explanatory variable | Categories |
|---|---|
Sex | Male |
Female | |
Age | 18-34 years |
35-44 years | |
45-54 years | |
55-64 years | |
65-74 years | |
75+ years | |
Ethnicity | White |
Non-white | |
Body mass index (BMI) | Underweight/Normal (BMI < 25) |
Overweight (BMI 25-29.9) | |
Obese (BMI 30+) | |
Low | |
Physical activity (based on the International Physical Activity Questionnaire (IPAQ)) | Moderate |
High | |
Cigarette smoking | Never smoked |
Former smoker | |
Current smoker | |
Alcohol consumption | Never/monthly or less/2-4 times per month |
2-3 times per week | |
4+ times per week | |
Fruit and vegetable consumption | < 5 portions per day |
5+ portions per day | |
Salt use while cooking | Always/usually, sometimes |
Sometimes | |
Rarely/never | |
Salt use at the table | Always/usually, sometimes |
Sometimes | |
Rarely/never | |
Highest level of education | Primary level |
Secondary level | |
Third level | |
Employment status | Employed |
Unemployed | |
Economically inactive | |
Social class | SC 1-2 (Professional and managerial) |
SC 3-4 (Non-manual and skilled manual) | |
SC 5-6 (Semi-skilled and unskilled) | |
Unclassified | |
Area deprivation [20] | Quintiles |