P1-395 Inequalities of iodine intake in pregnant women after salt iodisation: low & high quantiles and correlated factors

Abstract

Results From 814 age-and sex-matched controls identified, a 25% questionnaire response rate was achieved. 3% were returned with address inaccuracy, and no complaints were received from any recipient. Of the 163 hospital attendees, 135 (83%) were identified on the website. Comparing those who were/were not identified revealed no differences in mean age (identified¼59 yrs, vs 60 yrs; P ManneWhitney ¼0.45), sex (identified¼50% Female vs 57%; P c 2 ¼0.51), deprivation (P ManneWhitney ¼0.71) or rurality (P c 2 ¼0.11). Of those identified, an age estimate was quoted for 131 (97%) of which 113(86%) were accurate. Conclusions This is the first evaluation of an online population sampling frame of which we are aware. The website, 192.com, acted as a feasible sampling frame, demonstrating good participant acceptability, coverage, accuracy and representation. In the future, such resources could provide researchers with alternative sampling opportunities. Introduction The purpose of this study is to evaluate the effectiveness of a community based, multi dimensional noise induced hearing loss (NIHL) and tinnitus prevention program in American Indian elementary school children. NIHL is responsible for 30% of all hearing loss nationally and is almost 100% preventable with simple measures. Methods Baseline questionnaires identifying knowledge, attitudes and behaviours regarding sound exposures of 4 th and 5 th grade student of an Oregon Tribal School were completed. Community intervention includes use of local media modalities, presentation of a classroom education program, and a community/family event and booster intervention with a web-based virtual museum exhibit. Post intervention and 3 month follow-up questionnaires will be collected to evaluate short and long-term changes in parameters Results Information was provided to the community via Tribal newspaper, radio and web sources. Baseline questionnaires were completed by 130 students. 160 students received the Dangerous Decibels classroom program. 225 children, friends and family attended an evening event furthering the education. Students selfreported a wide range of hazardous sound exposures, most listening to loud music and fireworks. Over 31% reported regular exposure to live gunfire. 18% use hearing protection frequently. 53% reported being around sounds that were loud enough to cause pain or tinnitus. Conclusions These results indicate that the target population of the study is at risk for NIHL and related tinnitus. This is a first attempt at improving hearing health in a Tribal community through community based intervention. P1-393 COMMUNITY BASED NOISE INDUCED HEARING LOSS PREVENTION FOR TRIBAL CHILDREN