Table 5 Annual number of ED visits for asthma, per patient, in Canada

Children

Blais et al. 2011 [43]

27,355

Children, 5–15 years, on ICS or LTRA therapy, by # of exacerbations in the previous year, 1998-2005

0.04* (on LTRA, no exacerb. in the previous year)

0.32* (on ICS, 1+ exacerb. in the previous year)

Lougheed et al. 2006 [28]

4,674

Ontario patients, <20 years, 2001-2002

13.6 [8.7 to 25.2]**

Sin et al. 2003 [32]

90,845

Children, 0–10 years, 1985–1988, by SES

6 [0 to 31]** (very poor)

7 [0 to 34]** (non-poor)

Ungar et al. 2001 [33]

339

Children with asthma, <15 years, Ontario, 1995

0.8*

Adults

Sin et al. 2001 [44]

elderly asthmatic, by ICS therapy

1 (1.2)* (not using ICS)

1.5 (1.3)* (using ICS)

Rowe et al. 2009 [45]

48,942

Adults, 1999/2000 to 2004/2005

6.7** (2004/2005)

9.7** (1999/2000)

Lemiere et al. 2007 [25]

351

Adults, work-related asthma, 2001-2004

0.2 (0.7)* (NWRA)

0.3 (0.8)* (WRA)

Lougheed et al. 2006 [28]

3,993

Adults, ≥20 years, 2001-2002

3.9 [1.7 to 10.1]**

Anis et al. 2001 [38]

5,434

Adults, use of SABA+ICS, 1995

0.04 (0.26)* (appropriate use∫)

0.08 (0.33)* (inappropriate use∫)

Rowe et al. 2007 [23]

3,031

Canada and US ED visits, 1996-1998

0(0–3)§ (US)

1(0–3)^§ (Canada)

Baibergenova et al. 2005 [39]

73,566

Adult, Ontario, 2001-2004

0.45^†

All ages

Rosychuk et al. 2010 [19]

21,700

Asthma patients, Alberta, 2004-2005

6.9(6.6-7.0)*** (Calgary)

15.1(15.1-15.9)*** (NMU)