Blood Pressure and DIetary Calcium intake in Rural and Urban population (source , CHNS)

Data Dictionnary

Relationship between Dietary Calcium, Blood Pressure and Hypertension occurrence in Rural and Urban populations: Analysis of longitudinal data from the China Health and Nutrition Survey (CHNS)

The present document is submitted along with its data spreadsheet where variables are presented into codes or abbreviations. The following lines will present the variables units, range categorization, and meanings.

Id: Participants Identification Numbers in each Survey year

Age     : Participants Age at each year of survey

Location: participants’ living location; 1 for Urban Location and 2 for Rural Location

Gender: Participants’ Gender

Nation: Participants’ Nationalities

Waves: Survey years, starting from 2000 to 2009; there are 4 survey’s in all, 2000, 2004, 2006, and 2009.

Smoking: Participants’ smoking status categorized into two; 0 for Non-smokers and 1 for Smokers         

Alcohol: Alcohol consumption frequency per week; 1 unit represents 1 glass of alcohol drink.

DgHBP: Hypertension Diagnostics report; 0 for No Hypertension diagnostic report, 1 for Any Diagnostic report.

SBP : 3 times mean Systolic Blood pressure measurement for each participant

DBP: 3 times mean Diastolic Blood pressure measurement for each participant

BMI: Participants’ Body Mass Index calculating using participants’ Weight and Height in the Adolphe Quetelet Formula[i]

NRG: Participants’ Energy intake      expressed in Kcal

DietCa: Participants’ Dietary Calcium Intake expressed in mg        

Met_m: Physical activity expressed in hours per week         

[i]Weight (Cm)/[Height (m)]2