Table 2.

Survey components of the second round of the fifth Korea National Health and Nutrition Examination Survey in 2011 (KNHANES V-2)

Survey	Components	Method
Health interview	Housing characteristics, medical conditions, socioeconomic status, health care utilization, activity limitation, quality of life, injury	Face-to-face interview in the mobile examination centre (MEC)
	Smoking, alcohol use, physical activity, mental health, oral health, weight control, safety, reproductive health for women	Self- administered in MEC
Health examination	Body measurements, blood pressure, laboratory test (blood and urine), dental measurement, vision, retinal photo and visual field, audiometry, spirometry, balance, bone density and body composition, chest, knee and hip-joint X-ray	Measured and examined in MEC
Nutrition survey	Dietary behaviour, dietary supplement use, food security, food frequency, food and dietary intake	Face-to-face interview in sample person’s home