References
- Scott DW, Factor LE, Gorry GA. Predicting the response time of an urban ambulance system. Health Serv Res. 1978;13:404–17.
- Peleg K, Pliskin JS. A geographic information system simulation model of EMS: reducing ambulance response time. Am J Emerg Med. 2004;22:164–70.
- Austin PC, Schull MJ. Quantile regression: a statistical tool for out-of-hospital research. Acad Emerg Med. 2003;10:789–97.
- Pons PT, Markovchick VJ. Eight minutes or less: does the ambulance response time guideline impact trauma patient outcome? J Emerg Med. 2002;23:43–8.
- Ong ME, Chiam TF, Ng FS, Reducing ambulance response times using geospatial-time analysis of ambulance deployment. Acad Emerg Med. 2010;17:951–7.
- Pell JP, Sirel JM, Marsden AK, Ford I, Cobbe SM. Effect of reducing ambulance response times on deaths from out of hospital cardiac arrest: cohort study. BMJ. 2001;322:1385–8.
- Brown LH, Hunt RC, Whitney CL, Hogue T, Addario M. Do warning lights and sirens reduce ambulance response times? Ann Emerg Med. 1999;34(suppl):S16.
- Moser DK. Reducing delay in seeking treatment by patients with acute coronary syndrome and stroke: a scientific statement from the American Heart Association Council on Cardiovascular Nursing and Stroke Council. Circulation. 2006;114:168–82.
- Lateef F. The emergency medical services in Singapore. Resuscitation. 2006;68:323–8.
- Carlowe J. Ambulance service puts too much emphasis on response time to detriment of overall care, says National Audit Office. BMJ. 2011;342:d3672.
- National Association of EMS Physicians Board of Directors. Emergency medical dispatch [NAEMSP position paper]. Prehosp Emerg Care. 2008;12:217.
- Aday LA, Andersen R. A framework for the study of access to medical care. Health Serv Res. 1974;9:208–20.
- Gratton M, Garza A, Salomone JA, McElroy J, Shearer J. Ambulance staging for potentially dangerous scenes: another hidden component of response time. Prehosp Emerg Care. 2010;14:340–4.
- Ong ME, Ng FS, Overton J, Geographic–time distribution of ambulance calls in Singapore: utility of geographic information system in ambulance deployment (CARE 3). Ann Acad Med Singapore. 2009;38:184–91.
- Seow E, Lim E. Ambulance response time to emergency departments. Singapore Med J. 1993;34:530–2.
- Concannon TW, Griffith JL, Kent DM, Elapsed time in emergency medical services for patients with cardiac complaints /clinical perspective. Circ Cardiovasc Qual Outcomes. 2009;2:9–15.
- Govindarajan A, Schull M. Effect of socioeconomic status on out-of-hospital transport delays of patients with chest pain. Ann Emerg Med. 2003;41:481–90.
- Silverman RA, Galea S, Blaney S, The “vertical response time”: barriers to ambulance response in an urban area. Acad Emerg Med. 2007;14:772–8.
- Peters J, Hall GB. Assessment of ambulance response performance using a geographic information system. Soc Sci Med. 1999;49:1551–66.
- Lim SH, Anantharaman V. Emergency medicine in Singapore: past, present, and future. Ann Emerg Med. 1999;33:338–43.
- Ong M, Chan YH, Anantharaman V, Lau ST, Lim SH, Seldrup J. Cardiac Arrest and Resuscitation Epidemiology in Singapore (CARE I Study). Prehosp Emerg Care. 2003;7:427–33.
- Singapore Department of Statistics. Key Annual Indicators. 2012. Available at: http://www.singstat.gov.sg/stats/ keyind.html#keyind. Accessed November 20, 2012.
- Earnest A, Tan SB, Shahidah N, Ong ME. Geographical variation in ambulance calls is associated with socioeconomic status. Acad Emerg Med. 2012;19:180–8.
- Ong ME, Ng FS, Yap S, Yong KL, Peberdy MA, Ornato JP. Temporal variation of out of hospital cardiac arrests in an equatorial climate. Open Access Emerg Med. 2010;2:37–43.
- Schull M, Morrison L, Vermeulen M, Redelmeier D. Emergency department overcrowding and ambulance transport delays for patients with chest pain. CMAJ. 2003;168:277–83.
- Machado JAF, Silva JMCS. Quantiles for counts. J Am Stat Assoc. 2005;100:1226–37.
- Sin CH. The quest for a balanced ethnic mix: Singapore's ethnic quota policy examined. Urban Stud. 2002;39:1347–74.