Assessment of non-response bias in a survey of residential magnetic field exposure in Taiwan

Chung-Yi Li, Gabor Mezei, Fung Chang Sung, Michael Silva, Pei Chen Lee, Pei Chun Chen, Li Mei Chen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We assessed potential non-response bias in obtaining information on residential extremely low-frequency power frequency magnetic field (MF) in Taiwan. All households occupied by children aged less than 7 years in two study districts, one in an urban town and the other in a rural town, were visited and solicited for on-site measurements in late 2003. The initial response rate was only 32% (33/104, urban) and 60% (61/101, rural). In the same season 1 year later, we performed a second survey of those who declined to be measured at the initial survey and successfully measured another 77 residences (50 and 27 for urban and rural districts, respectively). The two districts were selected mainly because the local public health officers were quite willing to assist the initial survey and to inform residents of the second survey. Except for meteorological conditions, the two surveys came up with very similar findings regarding residential characteristics and power facilities surrounding the houses. The mean residential MF for the urban residences was .121 and .140 micro-Tesla (μT) (P = .620) for the two surveys. The corresponding figures for the rural residences were .119 and .115 μT (P = .802). Although limited in its scope, this study tends to indicate that measurement studies of residential MF are less likely to suffer from serious selection bias if sampling is confined within a small district where people have similar socioeconomic characteristics.

Original languageEnglish
Pages (from-to)340-348
Number of pages9
JournalBioelectromagnetics
Volume28
Issue number5
DOIs
Publication statusPublished - 2007 Jul 1

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Magnetic Fields
Taiwan
Selection Bias
Surveys and Questionnaires
Public Health

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Physiology
  • Radiology Nuclear Medicine and imaging

Cite this

Li, C-Y., Mezei, G., Sung, F. C., Silva, M., Lee, P. C., Chen, P. C., & Chen, L. M. (2007). Assessment of non-response bias in a survey of residential magnetic field exposure in Taiwan. Bioelectromagnetics, 28(5), 340-348. https://doi.org/10.1002/bem.20306
Li, Chung-Yi ; Mezei, Gabor ; Sung, Fung Chang ; Silva, Michael ; Lee, Pei Chen ; Chen, Pei Chun ; Chen, Li Mei. / Assessment of non-response bias in a survey of residential magnetic field exposure in Taiwan. In: Bioelectromagnetics. 2007 ; Vol. 28, No. 5. pp. 340-348.
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Li, C-Y, Mezei, G, Sung, FC, Silva, M, Lee, PC, Chen, PC & Chen, LM 2007, 'Assessment of non-response bias in a survey of residential magnetic field exposure in Taiwan', Bioelectromagnetics, vol. 28, no. 5, pp. 340-348. https://doi.org/10.1002/bem.20306

Assessment of non-response bias in a survey of residential magnetic field exposure in Taiwan. / Li, Chung-Yi; Mezei, Gabor; Sung, Fung Chang; Silva, Michael; Lee, Pei Chen; Chen, Pei Chun; Chen, Li Mei.

In: Bioelectromagnetics, Vol. 28, No. 5, 01.07.2007, p. 340-348.

Research output: Contribution to journalArticle

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