Influenza and pneumonia hospitalizations in Ontario: A time-series analysis

Epidemiology and Infection

Volumn 132, Issue 6, 2004, Pages 1167-1174

  Crighton, Eric J ^a   Moineddin, Rahim ^b,c   Mamdani, Muhammad ^c,d   Upshur, Ross E G ^a,b,c  

^a SUNNYBROOK RESEARCH INSTITUTE   (Canada)

^b UNIVERSITY OF TORONTO   (Canada)

^c UNIVERSITY OF TORONTO   (Canada)

^d INSTITUTE FOR CLINICAL EVALUATIVE SCIENCES   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ADULT; AGE; AGED; ARTICLE; CANADA; CHILD; CLINICAL EXAMINATION; CONTROLLED STUDY; FEMALE; HEALTH CARE DELIVERY; HOSPITALIZATION; HUMAN; INCIDENCE; INFANT; INFLUENZA; INFLUENZA VIRUS; KOLMOGOROV SMIRNOV TEST; MAJOR CLINICAL STUDY; MALE; MEDICAL RECORD; MYCOPLASMA PNEUMONIAE; PNEUMONIA; POPULATION RESEARCH; RETROSPECTIVE STUDY; SEASONAL VARIATION; SEX DIFFERENCE; STREPTOCOCCUS PNEUMONIAE; SUMMER; TIME SERIES ANALYSIS; WINTER;

ADOLESCENT; ADULT; AGE FACTORS; AGED; AGED, 80 AND OVER; CHILD; CHILD, PRESCHOOL; FEMALE; HOSPITALIZATION; HUMANS; INFANT; INFANT, NEWBORN; INFLUENZA, HUMAN; MALE; MIDDLE AGED; ONTARIO; PNEUMONIA; RETROSPECTIVE STUDIES; SEASONS; SEX FACTORS;

EID: 10444220207     PISSN: 09502688     EISSN: None     Source Type: Journal    
DOI: 10.1017/S0950268804002924     Document Type: Article

References (32)

1. Health Canada. Respiratory disease in Canada. Ottawa, Canada, 2001.
2. Anonymous. Pneumonia and influenza data rates - United States, 1979-1994. Morb Mortal Wkly Rep 1995; 44: 535-537.
3. Lange P, Vestbo J, Nyboe J. Risk factors for death and hospitalization from pneumonia. A prospective study of a general population. Eur Respir J 1995; 8: 1694-1698.
4. Marrie TJ. Community-acquired pneumonia: epidemiology, etiology, treatment. Infect Dis Clin North Am 1998; 12: 723-740.
5. Gotfried MH. Epidemiology of clinically diagnosed community-acquired pneumonia in the primary care setting: results from the 1999-2000 respiratory surveillance program. Am J Med 2001; 111 (Suppl 9A): 25S-29S; discussion 36S-38S.
6. Gray GC, Mitchell BS, Tueller JE, Cross ER, Amundson DE. Pneumonia hospitalizations in the US Navy and Marine Corps: rates and risk factors for 6,522 admissions, 1981-1991. Am J Epidemiol 1994; 139 793-802.
7. Donaldson G, Keatinge W. Excess winter mortality; infuenza or cold stress? Observational study. Br Med J 2002; 324: 89-90.
8. Muller-Pebody B, Edmunds WJ, Zambon MC, Gay NJ, Crowcroft NS. Contribution of RSV to bronchiolitis and pneumonia-associated hospitalizations in English children, April 1995-March 1998. Epidemiol Infect 2002; 129: 99-106.
9. Nguyen-Van-Tam JS, Brockway CR, Pearson JC, Hayward AC, Fleming DM. Excess hospital admissions for pneumonia and influenza in persons ≥65 years associated with influenza epidemics in three English health districts: 1987-95. Epidemiol Infect 2001; 126: 71-79.
10. Kim PE, Musher DM, Glezen WP, Rodriguez-Barradas MC, Nahm WK, Wright CE. Association of invasive pneumococcal disease with season, atmospheric conditions, air pollution, and the isolation of respiratory viruses. Clin Infect Dis 1996; 22: 100-106.
11. Dowell SF, Whitney CG, Wright C, Rose Jr. CE, Schuchat A. Seasonal patterns of invasive pneumococcal disease. Emerg Infect Dis 2003; 9: 573-579.
12. Saynajakangas P, Keistinen T, Tuuponen T. Seasonal fluctuations in hospitalisation for pneumonia in Finland. Int J Circumpolar Health 2001; 60: 34-40.
13. Carrat F, Valleron AJ. Influenza mortality among the elderly in France, 1980-90: how many deaths may have been avoided through vaccination? J Epidemiol Community Health 1995; 49: 419-425.
14. Simonsen L, Fukuda K, Schonberger LB, Cox NJ. The impact of influenza epidemics on hospitalizations. J Infect Dis 2000; 181: 831-837.
15. Upshur R, Knight K, Goel V. Time-series analysis of the relation between influenza virus and hospital admissions of the elderly in Ontario, Canada, for pneumonia, chronic lung disease, and congestive heart failure. Am J Epidemiol 1999; 149: 85-92.
16. Barker WH. Excess pneumonia and influenza associated hospitalization during influenza epidemics in the United States, 1970-78. Am J Public Health 1986; 76: 761-765.
17. Sims RV, Boyko EJ, Maislin G, Lipsky BA, Schwartz JS. The role of age in susceptibility to pneumococcal infections. Age Ageing 1992; 21: 357-361.
18. Menec V, Roos N, Nowicki D, Macwilliam L, Finlayson G, Black C. Seasonal patterns of Winnipeg hospital use. Report prepared by Manitoba Centre for Health Policy and Evaluation (http://www.umanitoba.ca/centres/mchp/reports/pdfs/seasonal.pdf). Accessed Feb. 2004.
19. Peled T, Weingarten M, Varsano N, et al. Influenza surveillance during winter 1997-1998 in Israel. Isr Med Assoc J 2001; 3: 911-914.
20. Williams J, Young W. Appendix I: a summary of studies on the quality of health care administrative databases in Canada. Patterns of healthcare in Ontario. The ICES practice atlas, 2nd edn. Canadian Medical Association, 1996.
21. Rawson N, Malcolm E. Validity of the recording of cholecystectomy and hysterectomy in the Saskatchewan health care datafiles. Saskatoon: Pharmacoepidemiology Research Consortium, 1995.
22. Davidson W, Molloy DW, Somers G, Bedard M. Relation between physician characteristics and prescribing for elderly people in New Brunswick. Can Med Assoc J 1994; 150: 917-921.
23. Thiessen BQ, Wallace SM, Blackburn JL, Wilson TW, Bergman U. Increased prescribing of antidepressants subsequent to beta-blocker therapy. Arch Intern Med 1990; 150: 2286-2290.
24. Marrie TJ, Durant H, Sealy E. Pneumonia - the quality of medical records data. Med Care 1987; 25: 20-24.
25. Upshur R. Measuring the impact of influenza on hospitalizations of the elderly in Ontario (MSc Thesis). Toronto, Ontario, Canada: University of Toronto, 1997.
26. Fuller W. Introduction to statistical time series. New York: John Wiley and Sons, Inc., 1976.
27. Priestly M. Spectral analysis and time series. New York: Academic Press, Inc., 1981.
28. Box G, Jenkins G. Time series analysis: forecasting and control, 2nd edn. San Francisco: Holden-Day, 1976.
29. Moineddin R, Upshur RE, Crighton E, Mamdani M. Autoregression as a means of assessing the strength of seasonality in a time series. Popul Health Metr 2003; 1: 10 (http://www.pophealthmetries.com/content/1/1/10).
30. Lieberman D, Friger MD. Seasonal variation in hospital admissions for community-acquired pneumonia: a 5-year study. J Infect 1999; 39: 134-140.
31. Stokes J, Lindsay J. Major causes of death and hospitalization in Canadian seniors. Chronic Dis Can 1996; 17: 63-73.
32. Crighton EJ, Moineddin R, Upshur RE, Mamdani M. The seasonality of total hospitalizations in Ontario by age and gender: a time series analysis. Can J Public Health 2003; 94: 453-457.