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2012 | 7 | 6 | 775-782
Article title

Urban morbidity in summer: ambulance dispatch data, periodicity and weather

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Over recent years the impact of weather on human health has become more severe, especially for people living in urban areas. Even though many studies have analysed the impact of weather on human mortality, few have quantified the impact of heat on morbidity, including ambulance response calls. In this study, 13,354 calls collected in the city of Florence (Italy) during summer were analyzed by month, day of the week, hour, and time slot of the day. An objective air mass classification was used to classify days and time slots with similar weather characteristics and a multiple variable analysis was applied to evaluate the relationship between emergency calls and weather. A positive trend was observed in the morning and a negative one during the night for all emergency calls, but only for food poisoning and alcoholic diseases. Calls for cardiovascular events increased in the morning and on hot days. Calls for psychiatric disorders rose significantly with temperature during the afternoon. The total number of calls and those for alcoholic diseases rose during the hottest nights. Our results, which show a clear relationship between ambulance response calls, periodicity, and weather, could contribute to an understanding the impact of weather on morbidity.
Physical description
1 - 12 - 2012
11 - 10 - 2012
  • Interdepartmental Centre of Bioclimatology, University of Florence, Piazzale delle Cascine, 18, 50144, Firenze, Italy
  • Institute of Biometeorology, National Research Council, Via Caproni, 8, 50145, Firenze, Italy
  • [1] McMichael, A.J., Woodruff, R.E., Hales, S., Climate change and human health: present and future risks, Lancet, 2006, 367, 859–869[Crossref]
  • [2] Kilbourne, E.M., Heat waves and hot environments, Oxford University Press, New York, NY. 1997
  • [3] Rooney, C., McMichael, A.J., Kovats, R.S., Coleman, M. Excess mortality in England and Wales, and in Greater London, during the 1995 heat wave, J Epidemiol Community Health, 1998, 52, 482–486[Crossref]
  • [4] Bassil, K.L., Cole, D.C., Moineddin, R., et al., Development of a surveillance case definition for heat-related illness using 911 medical dispatch data, Can J Public Health, 2008, 99(4), 339–343
  • [5] Bassil, K.L., Cole, D.C., Moineddin, R., et al., Temporal and spatial variation of heat-related illness using 911 medical dispatch data, Environ Res, 2009, 109, 600–606[WoS]
  • [6] Bassil, K.L., Cole, D.C., Moineddin, R., et al., The relationship between temperature and ambulance response calls for heat-related illness in Toronto, Ontario, 2005, J Epidemiol Community Health, 2011, 65(9), 829–831[WoS][Crossref]
  • [7] Claessens, Y.E., Taupin, P., Kierzek, G., et al., How emergency departments might alert for pre-hospital heat-related excess mortality?, Crit Care, 2006, 10(6), R156[Crossref]
  • [8] Manfredini, R., La Cecilia, O., Boari, B., et al., Circadian pattern of Emergency Calls: Implications for ED Organization, Am J Emerg Med, 2002, 20(4), 282–286[Crossref]
  • [9] Brunetti, M., Maugeri, M., Monti, F., Nanni, T., Temperature and precipitation variability in Italy in the last two centuries from homogenised instrumental time series, Int J Climatol, 2006, 26, 345–381[Crossref]
  • [10] Klein Tank, A.M.G., Können, G.P., Trends in indices of daily temperature and precipitation extremes in Europe 1946–99, J Climate, 2003, 16(22), 3665–3680<3665:TIIODT>2.0.CO;2[Crossref]
  • [11] Bartolini, G., Morabito, M., Crisci, A., et al., Recent trends in Tuscany (Italy) summer temperature and indices of extremes, Int J Climatol, 2008, 28(13), 1751–1760[WoS][Crossref]
  • [12] Petralli, M., Massetti, L., Orlandini, S., Five years of thermal intra-urban monitoring in Florence (Italy) and application of climatological indices, Theor Appl Climatol, 2011, 104(3–4), 349–356[WoS][Crossref]
  • [13] Holleman, D.R.Jr, Bowling, R.L., Gathy, C., Predicting daily visits to a walk-in clinic and emergency department using calendar and weather data, J General Internal Med, 1996, 11(4), 237–239[Crossref]
  • [14] Jones, S.S., Thomas, A., Evans, R.S., Welch, S.J., Haug, P.J., Snow, G.L., Forecasting daily patient volumes in the emergency department, Acad Emerg Med, 2008, 15(2), 159–170[Crossref]
  • [15] Sun, Y., Heng, B.H., Seow, Y.T., Seow, E., Forecasting daily attendances at an emergency department to aid resource planning, BMC Emerg Med, 2009, 29(9), 1[Crossref]
  • [16] Zibners, L.M., Bonsu, B.K., Hayes, J.R., Cohen, D.M., Local weather effects on emergency department visits: a time series and regression analysis, Ped Emerg Care, 2006, 22(2), 104–106[Crossref]
  • [17] Sheridan, S.C., The redevelopment of a weathertype classification scheme for North America, Int J Climatol, 2002, 22, 51–68[Crossref]
  • [18] Kalkstein, L.S., Nichlos, M.C., Barthel, C.D., Greene, J.S., A New Spatial Synoptic Classification: Application to Air Mass Analysis, Int J Climatol, 1996, 16, 983–1004<983::AID-JOC61>3.0.CO;2-N[Crossref]
  • [19] Yarnal B., Synoptic climatology in environmental analysis: a primer. Studies in Climatology Series. London Belhaven Press, London, 1993
  • [20] Morabito, M., Crisci, A., Orlandini, S., Maracchi, G., Gensini, G.F., Modesti, P.A., A Synoptic Approach to Weather Conditions Discloses a relationship With Ambulatory Blood Pressure in Hypertensives, Am J. Hypert, 2008, 21(7), 748–752[Crossref]
  • [21] Dolney, T.J., Sheridan, S.C., The relationship between extreme heat and ambulance response calls for the city of Toronto, Ontario, Canada, Environ Res, 2006, 101(1), 94–103 [Crossref]
  • [22] Morabito, M., Profili, F., Crisci, A., Francesconi, P., Gensini, G.F., Orlandini, S., Heat-related mortality in the Florentine area (Italy) before and after the exceptional 2003 heat wave in Europe: an improved public health response?, Int J Biometeorol, (in press) DOI 10.1007/s00484-011-0481-y [WoS][Crossref]
  • [23] Driscoll, D.M., Stillman, D.N., Weather and emotional state: a search for associations between weather and calls to telephone counselling services, Int J Biometeorol, 2001, 47, 21–34[Crossref]
  • [24] Hribersek, E., Van De Voorde, H., Poppe, H., Casselman, J., Influence of the day of the week and the weather on people using a telephone support system, Br J Psychiatry, 1987, 150, 189–192[Crossref]
  • [25] Ebi, K.L., Schmier, J.K., A stitch in time: improving public health early warning systems for extreme weather events, Epidemiol Rev, 2005, 27, 115–21[Crossref]
  • [26] Van Der Lann, M.J., Pollard, K.S., Bryan, J.E., A New Partitioning Around Medoids Algorithm, J Stat Comput Simul, 2003, 73(8), 575–584[Crossref]
  • [27] Rousseeuw, P.J., Silhouettes: a Graphical Aid to the Interpretation and Validation of Cluster Analysis, J Comput Appl Math, 1987, 20, 53–65[Crossref]
  • [28] Giles, T.D., Circadian variation of blood pressure and the relation to cardiovascular events, J Hypert, 2006, 24(Suppl2), S11–S16
  • [29] Muller, J.E., Ludmer, P.L., Willich, S.N., et al., Circadian variation in the frequency of sudden cardiac death, Circulation, 1987, 75, 131–138[Crossref]
  • [30] Semenza, J.C., McCullough, J.E., Flanders, W.D., McGeehin, M.A., Lumpkin, J.R., Excess Hospital admission during the July 1995 heat wave in Chicago, Am J Prev Med, 1999, 16, 269–277[Crossref]
  • [31] Pokorny, A.D., Davis, F., Harberson, W., Suicide, suicide attempts, and weather, Am J Psychiatry, 1963, 120, 377–381 [Crossref]
  • [32] Turner-Warwick, M., Epidemiology of nocturnal asthma, Am J Med, 1988, 85, 6–8[Crossref]
  • [33] Lewis, D.A., Sleep in patients with asthma and chronic obstructive pulmonary disease, Curr Opin Pulm Med, 2001, 7(2), 105–112[Crossref]
  • [34] Hajat, S., Haines, A., Associations of cold temperatures with GP consultations for respiratory and cardiovascular disease amongst the elderly in London, Int J Epidemiol, 2002, 31, 825–830[Crossref]
  • [35] Barrow, M.W., Clark, K.A., Heat-related illnesses, Am Fam Physician, 1998, 58(3), 749–756
  • [36] Kalkstein, L.S., Davis, R.E., Weather and human mortality: An evaluation of demographic and interregional responses in the United States, Annals of the Association of American Geographers, 1989, 79, 44–64[Crossref]
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