TY - JOUR AU - Feveile, Helene AU - Olsen, Ole AU - Hogh, Annie PY - 2007 DA - 2007/06/26 TI - A randomized trial of mailed questionnaires versus telephone interviews: Response patterns in a survey JO - BMC Medical Research Methodology SP - 27 VL - 7 IS - 1 AB - Data for health surveys are often collected using either mailed questionnaires, telephone interviews or a combination. Mode of data collection can affect the propensity to refuse to respond and result in different patterns of responses. The objective of this paper is to examine and quantify effects of mode of data collection in health surveys. SN - 1471-2288 UR - https://doi.org/10.1186/1471-2288-7-27 DO - 10.1186/1471-2288-7-27 ID - Feveile2007 ER -