Nutritional Strategy for Blood Pressure Control in Patients With Hypertension (NUPRESS)

Systolic blood pressure, in mmHg

Blood pressure control, defined as either having systolic blood pressure (SBP) > 140 mmHg at baseline and achieving SBP ≤ 140 mmHg after follow-up or having SBP ≤ 140 mmHg at baseline and reducing anti-hypertensive drugs after follow-up.

Diastolic blood pressure, in mmHg

Glycated hemoglobin, in %

Fasting glucose, in mg/dL

Body weight, in kg

Waist circumference, in cm

Body mass index, in kg/m2; it will be defined according to the mathematical formula (BW/height*height)

Total cholesterol, in mg/dL

LDL cholesterol, in mg/dL; it will be defined according to the Martin´s mathematical formula

HDL cholesterol, in mg/dL

Serum triglycerides, in mg/dL

VLDL cholesterol, in mg/dL; it will be obtained according to the mathematical formula TG/5

Non-HDL cholesterol, in mg/dL; it will be obtained according to the mathematical formula TC-HDL-c

Castelli Index I, in mg/dL; it will be obtained according to the mathematical formula TC/HDL-c

Castelli Index II, in mg/dL; it will be obtained according to the mathematical formula LDL-c/HDL-c

Creatinine, in mg/dL

Glomerular filtration rate, in ml/min/1.73m2

Serum sodium, in mEq/L

Urinary sodium, in mEq/L

Serum potassium, in mEq/L

Urinary potassium, in mEq/L

Albuminuria, in mg/g

Diet quality, assessed by the modified Alternative Healthy Eating Index (mAHEI)

Quality of life evaluated by the Brazilian version of the Mini-cuestionario de calidad de vida en la hipertensión arterial. In this tool, ten items are related to the "mental status" domain and six items to "somatic manifestations". Questions refer to the past seven days. The score scale is a likert-type scale with four possible answers (0=absolutely no; 1=yes, a little; 2=yes, fairly; 3=yes, a lot). The points range from 0 (best health level) to 30 (worst health level) for the "mental status" dimension, and from 0 (best health level) to 18 (worst health level) for the "somatic manifestations" dimension.

Self-care evaluated by the Brazilian version of the Self-care of Hypertension Inventory Questionaire. This tool includes 23 items divided across 3 scales: Self-care Maintenance (11 items), Self-care Management (6 items), and Self-care Confidence (6 items). Items in the instrument are scored on a Likert-type scale. In the Self-care Maintenance domain, scores range from 1 to 5 (''never'' to ''always''). In the Self-care Management domain, 2 items range from 0 to 5 to capture a fully negative response, and other item options are scored 1 to 5. The remaining items are scored from 1 to 5 (''not likely'' to ''very likely''). In the self-care confidence scale, items are scored from 1 to 5. Scores are calculated for each scale individually. Each scale is standardized to range from 0 to 100. Self-care is considered adequate if the score is 70 or greater.

Therapeutic targets, defined as the proportion of participants who reached the following therapeutic targets: SBP/DBP < 140/90 mmHg; fasting glucose <100 mg/dL; LDL-c <100 mg/dL; BMI < 25 kg/m2 or weight loss > 5%

Anti-hypertensive drugs, defined as the type and proportion of anti-hypertensive drugs used