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Oregon EPHT Heart Attack Hospitalizations Indicator

Heart Attack Indicator:   Hospitalizations

Measure : Crude annual heart attack hospitalization rates

 

Data used in the calculation of these measures were collected by the Oregon Association of Hospitals and Health Systems for the Hospital Discharge Index (HDI). The HDI provides a central database of all Oregon hospital discharges for public health surveillance and hospital policy analysis. Information on emergency room visits, urgent care, outpatient surgery and clinic visits is not included in this database.

 

Before EPHT,  there was no single heart attack surveillance system in place in the US. Mortality was currently the sole descriptor for national data for heart attacks. Estimates of incidence and prevalence of heart attacks and coronary heart disease were largely based on survey samples or large cohort studies. 

 

Tracking heart attack hospitalizations will provide more information than death certificates or surveys, and will help with examination of time and geographic trends in heart attack hospitalizations, and evaluation of differences by age, gender and race/ethnicity.

 

The table, graphs and map below show crude heart attack hospitalization rates for Oregon from 2000 to 2006.

 

Crude hospitalization rates presented below are slightly higher than rates that are adjusted to the age structure of the standard 2000 U.S. population. This is due to the fact that heart attacks are more prevalent among older people and Oregon has a higher proportion of older people than the United States in general.

 

From 2000 to 2006, the crude rate of heart attack hospitalizations significantly decreased. This drop in heart attacks has been observed throughout the United States and was linked to a broader use of preventive medication and declines in risk factors such as smoking.

 

Besides the similar decrease in heart attack hospitalizations for Oregon and the United States as a whole, heart attack hospitalization rates were significantly lower in Oregon compared to the rest of the country. The reasons for Oregon’s low heart attack rates are not clear.

 

Crude rates were significantly higher in rural compared to urban counties, but the drop in rates over time was also more pronounced in rural counties. In other words, heart attack hospitalization rates have become similar in urban and rural areas as a result of the decreasing rates in the rural counties.

 

 

Table 1:  Crude annual heart attack hospitalization rates from 2000 to 2006, by year and county .

 

Graph 1:  Crude annual heart attack hospitalization rate for Oregon, by year from 2000 to 2006

 

Graph 2:  Crude annual heart attack hospitalization rates by county, averaged from 2000 to 2006 

 

Map 1:  Crude annual heart attack hospitalization rates for Oregon counties  

___________________________________________________________________________________________________

 

 

Table 1:  Crude annual heart attack hospitalization rates from 2000 to 2006, by year and county.  

 

Rates based on less than 10 events are unstable and marked with an asterisk (*).

 

 

2000

2001

2002

2003

2004

2005

2006

Oregon

36

 

36

 

37

 

36

 

33

 

32

 

31

 

Baker

39

 

53

 

31

 

38

 

23

 

20

 

16

 

Benton

23

 

28

 

26

 

19

 

22

 

20

 

18

 

Clackamas

30

 

31

 

37

 

34

 

29

 

28

 

29

 

Clatsop

54

 

46

 

48

 

50

 

56

 

56

 

48

 

Columbia

37

 

39

 

44

 

44

 

39

 

35

 

39

 

Coos

53

 

60

 

69

 

67

 

56

 

57

 

55

 

Crook

58

 

42

 

53

 

48

 

34

 

34

 

41

 

Curry

55

 

45

 

45

 

42

 

30

 

32

 

40

 

Deschutes

45

 

43

 

38

 

36

 

31

 

34

 

34

 

Douglas

42

 

39

 

49

 

46

 

49

 

39

 

34

 

Gilliam

34

*

50

*

60

*

43

*

86

 

43

*

43

*

Grant

30

 

33

 

39

 

35

 

20

*

41

 

37

 

Harney

57

 

51

 

46

 

53

 

28

 

38

 

33

 

Hood River

56

 

45

 

50

 

25

 

43

 

37

 

42

 

Jackson

41

 

37

 

39

 

35

 

30

 

30

 

32

 

Jefferson

42

 

42

 

49

 

55

 

57

 

47

 

68

 

Josephine

63

 

68

 

59

 

58

 

49

 

48

 

40

 

Klamath

48

 

43

 

42

 

42

 

41

 

39

 

37

 

Lake

49

 

51

 

49

 

33

 

40

 

40

 

48

 

Lane

31

 

33

 

30

 

33

 

33

 

30

 

30

 

Lincoln

58

 

52

 

46

 

48

 

47

 

36

 

42

 

Linn

51

 

54

 

48

 

48

 

40

 

42

 

38

 

Malheur

33

 

30

 

29

 

28

 

21

 

20

 

8

 

Marion

37

 

34

 

37

 

33

 

34

 

33

 

34

 

Morrow

21

 

41

 

42

 

32

 

14

*

11

*

10

*

Multnomah

30

 

31

 

32

 

33

 

31

 

30

 

28

 

Polk

36

 

31

 

28

 

29

 

25

 

26

 

26

 

Sherman

17

*

70

*

62

*

44

*

63

*

91

 

46

*

Tillamook

52

 

52

 

45

 

41

 

27

 

37

 

47

 

Umatilla

28

 

29

 

29

 

24

 

19

 

10

 

10

 

Union

54

 

47

 

27

 

21

 

26

 

24

 

26

 

Wallowa

48

 

31

 

40

 

46

 

44

 

20

*

13

*

Wasco

45

 

46

 

48

 

48

 

48

 

57

 

42

 

Washington

22

 

23

 

28

 

31

 

28

 

26

 

27

 

Wheeler

20

*

10

*

78

*

49

*

40

*

62

*

32

*

Yamhill

42

 

34

 

48

 

42

 

32

 

41

 

35

 

 

___________________________________________________________________________________________________

 

 

Graph 1:  Crude annual heart attack hospitalization rate for Oregon, by year from 2000 to 2006

 

 

 

____________________________________________________________________________________________________

 

Graph 2:  Crude annual heart attack hospitalization rates by county, averaged from 2000 to 2006

 

County rates are shown as blue squares, while the 95% confidence intervals (CI) are indicated by black horizontal lines. The vertical dotted line indicates the Oregon average rate.  A county rate is considered statistically higher (or lower) than the Oregon average if the entire CI lies above (or below) the Oregon average. If the CI includes the Oregon average, the county rate is considered statistically similar to the Oregon average.  

 

 

___________________________________________________________________________________________________

Map 1:  Crude annual heart attack hospitalization rates for Oregon counties

 

The rates are shown in three statistical categories: higher than, similar to, or lower than the Oregon rate. Data are summarized for 2000 to 2006. Statistical significance was determined by comparing the 95% confidence interval of the county rate with the State rate.

 

 

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