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Table 1 Observed and forecasted asthma incidence, 1996 to 2022 in Ontario

From: Is asthma a vanishing disease? A study to forecast the burden of asthma in 2022

Observed

Forecasted

 

1996

2009

2012

2022

 
 

Number

Rate

Number

Rate

Number

Rate

(95%CI*)

Number

Rate

(95%CI*)

ETS Model

Ontario population

11 082 903

 

11 838 462

        

Incidence per 1,000 population

Age groups in years:

5-9

22 101

32.7

18 092

27.9

20 500

27.9

(16.0, 48.9)

23 500

27.9

(8.7, 90.1)

M, N, N

10-19

12 606

9.3

8 444

6.0

9 400

5.8

(4.8, 7.2)

9 500

5.8

(4.6, 7.4)

A, Ad, N

20-39

20 683

6.1

9 537

2.9

10 000

2.7

(2.2, 3.3)

10 200

2.5

(2.1, 3.0)

A, A, N

40-59

15 395

5.8

10 977

3.1

12 200

3.1

(1.9, 4.8)

12 300

3.1

(1.2, 8.2)

M, A, N

60+

13 246

7.7

7 970

3.6

9 800

3.6

(2.4, 5.4)

13 600

3.6

(1.5, 8.6)

M, M, N

Setting:

Rural

10 624

8.7

4 568

3.2

NA

2.5

(2.3, 2.6)

NA

1.1

(1.0, 1.1)

A, A, N

Urban

73 294

7.8

50 429

4.8

NA

4.3

(3.9, 4.8)

NA

3.0

(2.4, 3.7)

A, A, N

Marginalization quintiles:

A, A, N

1 (least marginalized)

15 323

5.7

15 323

4.8

NA

4.6

(4.4, 4.9)

NA

4.5

(4.3, 4.7)

A, Ad, N

2

17 311

7.4

17 311

4.6

NA

4.1

(3.9, 4.3)

NA

3.1

(3.0, 3.3)

M, M, N

3

16 834

8.3

16 834

4.4

NA

3.8

(3.5, 4.2)

NA

2.3

(1.9, 2.8)

A, A, N

4

15 812

9.4

15 812

4.4

NA

3.7

(3.3, 4.1)

NA

2.0

(1.5, 2.7)

A, A, N

5 (most marginalized)

15 337

10.5

15 337

5.0

NA

4.2

(3.8, 4.7)

NA

2.4

(1.9, 3.0)

A, A, N

  1. *95%CI = 95% Confidence Intervals.
  2. Note: NA = Not applicable since no projected population data available, ETS = error, trend, seasonality, M = multiplicative, N = none, A = Additive, Ad = damped additive.