Abstract
BACKGROUND: Older people often experience one or more chronic conditions, including respiratory conditions. Indoor air quality may (IAQ) may elevate symptoms of respiratory disease such as coughing. Consequently, people may experience a lower Health Related Quality of Life (HR-QoL). The objective of the Rotterdam K-HEALTHinAIR pilot site is to study IAQ and health among elderly: this study presents the design of the study and preliminary baseline results of IAQ and health. METHODS: A observational study is performed among n = 110 older people living in the broader Rotterdam-area, the Netherlands, recruited via opportunity sampling, hospitals and senior-residential corporations. Participants provide informed consent to participate in the study. IAQ is assessed near real-time using home sensors. An observation checklist captures environmental characteristics of the home. Participants complete a diary every 3 months and a self-report questionnaire at baseline, 6- and 12-months; measures include Health-Related Quality of Life, well-being and respiratory symptoms. Preliminary baseline data (n = 30 baseline questionnaires, n = 25 sensors) were analyzed using descriptive statistics and regression analyses. RESULTS: The mean age was 74.3 (SD: 6.3). Average concentrations were 684 ppm CO2 (SD: 723), PM2.5 was 4.8 µg/m3 (SD: 34.5) and average temperature 19.9 °C (SD:1.6). In total 40.0% participants were experiencing asthma and 43.3% COPD. Participants rated their general well-being 72.6 (SD: 18.6) (0-100). No associations were observed between indicators of IAQ and participant self-rated health and health symptoms in this preliminary dataset. CONCLUSIONS: Future data collection will allow for overtime associations between IAQ and a broad range of health outcomes. In the second and third phase of the study we aim to deepen findings and develop interventions.