Individual-based primary prevention of cardiovascular disease in Cambodia and Mongolia: early identification and management of hypertension and diabetes mellitus

Table 1 Survey sample sizes, sex and age, response rates and measurement methods

	Cambodia	Mongolia
Date of data collection	Feb - Apr 2010	Oct-Dec 2009
Response rate
Questionnaire	96.3%	95%
Physical measurements	94.2%	95%
Biochemical measurements	92.7%	95%¹
Sample size aged (25-64)	5,433	4,539 ²
Male: % (95% CI)	48.6 (47.2 - 50.1)	50.3 (48.2 - 52.3)
Age in years: mean (SD)	40.2 (0.20)	39.7 (0.28)
Measurement of Blood pressure (measured three times in sitting position)	NISSEI Digital Blood Pressure Monitor (Model DS-500)	Omron Model 5 Automatic Blood Pressure Monitor
Measurement of fasting Blood sugar and cholesterol	Whole capillary blood taken from fingertips; dry chemical reagent strips & Accutrend GCT instruments	Same as in Cambodia

¹ Biochemical measurements were carried out only on one-third of total sampled population in the age group 25-64 years old in Mongolia, and response rate given here refers to this one-third of the sampled population
² In Mongolia, the sampled population also included 15-24 years old, but these were excluded for this analysis.

ISSN: 1471-2458