Clinical Research Centre, Kuala Lumpur Hospital, Jalan Pahang, Kuala Lumpur 50586, Malaysia.
Singapore Med J. 2009 Oct;50(10):1013-8.
The Third National Health and Morbidity Survey Malaysia 2006 includes a nutritional status assessment of children. This study aimed to assess the inter- and intra-examiner reliability, the technical error of measurement and the validity of instruments for measuring weight, height and waist circumference.
A convenience sample of 130 adults working in a selected office setting was chosen to participate in the study, subject to the inclusion and exclusion study criteria. Two public health nurses, trained to follow a standard protocol, obtained the weight, height and waist circumference measurements. The weight was measured using the Tanita HD-318 digital weighing scale to the nearest 0.1 kg, and Seca Beam Scale to the nearest 0.01 kg. The height was measured using the Seca Bodymeter 206 and Stadiometer, both to the nearest 0.1 cm. The waist circumference was measured using the Seca circumference measuring tape S 201, to the nearest 0.1 cm.
The intra-examiner reliability in descending order was weight and height followed by waist circumference. The height measurement, on average, using the test instrument, reported a recording of 0.4 cm higher than the reference instrument, with the upper and lower limits at 2.5 cm and 1.6 cm, respectively. The technical error of measurement and coefficient of variation of weight and height for both inter-examiner and intra-examiner measurements were all within acceptable limits (below five percent).
The findings of this study suggest that weight, height and waist circumference measured in adults aged 18 years and above, using the respective above mentioned instruments, are reliable and valid for use in a community survey. Limiting the number of examiners, especially for waist circumference measurements, would yield a higher degree of reliability and validity.
马来西亚 2006 年第三次全国健康和发病率调查包括儿童营养状况评估。本研究旨在评估体重、身高和腰围测量的仪器的重复性、测量技术误差和有效性。
选择了一个选定办公地点工作的 130 名成年人的便利样本，符合纳入和排除标准。两名经过培训遵循标准协议的公共卫生护士获得了体重、身高和腰围测量值。体重使用 Tanita HD-318 数字称重秤测量，精确到 0.1 公斤，Seca Beam Scale 精确到 0.01 公斤。身高使用 Seca Bodymeter 206 和 Stadiometer 测量，均精确到 0.1 厘米。腰围使用 Seca 周长测量带 S 201 测量，精确到 0.1 厘米。
按降序排列，内部分组可靠性为体重和身高，然后是腰围。平均而言，使用测试仪器测量身高时，记录的数值比参考仪器高 0.4 厘米，上下限分别为 2.5 厘米和 1.6 厘米。体重和身高的技术误差和变异系数，无论是内部分组还是外部分组测量，都在可接受范围内（低于 5%）。
本研究结果表明，使用上述各自仪器测量 18 岁及以上成年人的体重、身高和腰围是可靠和有效的，可用于社区调查。限制检查人员的数量，特别是对于腰围测量，将提高可靠性和有效性。
