Potato Consumption and Risk of Hypertension

Potato Consumption Is Prospectively Associated With Risk of Hypertension: An 11.3-year Longitudinal Cohort Study

Government has popularized potatoes as a major staple food in China. Potato, a potassium-rich food with high glycemic responses after consumption, exhibits unclear effects on hypertension. In this study, the investigators aimed to examine the association between potato consumption and hypertension risk among Chinese people.

Study Overview

• Status: Completed
• Conditions: Hypertension

Detailed Description

Potato is considered as a superior crop due to its significant nutritive value and great production yield. China is the largest potato producer with a quarter of world production, followed by India, Russia, and USA. The potato production as well as consumption has enhanced in developing countries while continuously declined in developed countries during the last decade. The investigators therefore explored the prospective associations of consumption of total potatoes, sweet potatoes, stir-fried potatoes, and non stir-fried potatoes with the risk of hypertension in general people of the China Health and Nutrition Survey (CHNS) cohort study from 1989 to 2011. A total of 11,763 participants (≥20 years old) who were free of hypertension at baseline were enrolled from CHNS Cohort study. Cox proportional hazards regression models were used to estimate the associations after adjusting for potential confounders. This study provides new evidence on the association of various potato consumption with the incidence of hypertension in China. As urbanization accelerates across the whole domain of China, the tendency of transition to Western-style diets and lifestyles appears continuously and steeply growing. More and more potatoes will be consumed as processed potato products including potatoes chips and French fries, which may be a potential risk factor of hypertension occurrence.

• Study Type: Observational
• Enrollment (Actual): 11763

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 93 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Of the 11,763 participants, 5,344 male and 6,419 female were enrolled, ranging from 20 to 93 years old. People who consumed the potatoes, sweet potatoes, stir-fried potatoes, and non stir-fried potatoes accounted for 57.3%, 15.0%, 51.8%, and 28.1%, respectively. There were about 90.4% people who consumed the potatoes through the stir-frying method.

Description

Inclusion Criteria:

• Adults aged 20-93 with complete data on diet and follow-up time
• Adults with no chronic disease history

Exclusion Criteria:

• Adults aged < 20 years
• Identified to be pregnant
• Previously diagnosed with hypertension, cancers, infarction, apoplexy, and diabetes

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Hypertension	Incidence of hypertension, on basis of self-reported physician diagnosis, systolic blood pressure ≥ 140 mm Hg, diastolic blood pressure ≥ 90 mm Hg, or previous diagnose of hypertension by a physician or current use of anti-hypertensive drugs	From entry into the study (baseline: 1989-2009) until 2011

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Potato consumption	The frequency and the quantity of daily average consumption of total potatoes, sweet potatoes, stir-fried potatoes, and non stir-fried potatoes (g/day) based on 3-day 24-hr recall	From entry into the study (baseline: 1989-2009) until 2011

Collaborators and Investigators

• Sponsor: Zhejiang University

Study record dates

Study Major Dates

• Study Start (Actual): January 1, 1989
• Primary Completion (Actual): December 31, 2011
• Study Completion (Actual): February 1, 2018

Study Registration Dates

• First Submitted: February 2, 2018
• First Submitted That Met QC Criteria: February 12, 2018
• First Posted (Actual): February 13, 2018

Study Record Updates

• Last Update Posted (Actual): February 13, 2018
• Last Update Submitted That Met QC Criteria: February 12, 2018
• Last Verified: February 1, 2018

More Information

Terms related to this study

• Keywords: hypertension; potato consumption; CHNS
• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Hypertension
• Other Study ID Numbers: Potato-CHNS-Cohort

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No