Table 2

Total Number of MIs and UA in Relation to Method Used for Troponin Measurement in Sweden From 2007 to 2013

2007200820092010201120122013
MI
 Total MIs33,38031,73129,71229,62128,64128,12325,787
  Residents >20 yrs old6,974,0577,038,3517,112,6227,192,3567,269,1077,342,8087,417,271
  Incidence per 10,000 py48454241393835
  Length of stay, days8.8 ± 11.58.5 ± 11.08.2 ± 10.58.0 ± 10.37.7 ± 10.27.4 ± 9.27.3 ± 9.1
 MI diagnosed with cTn
  Total MIsN/AN/A28,609 (96)18,986 (64)10,159 (35)7,849 (28)6,732 (26)
  Length of stay, daysN/AN/A8.2 ± 10.57.9 ± 10.27.5 ± 10.27.2 ± 9.17.1 ± 9.4
 MI diagnosed with hs-cTnT
  Total MIsN/AN/A439 (1.5)6,842 (23)15,120 (53)18,881 (67)18,519 (72)
  Length of stay, daysN/AN/A8.0 ± 8.27.8 ± 9.87.5 ± 10.17.5 ± 9.37.4 ± 9.1
 MI diagnosed at hospitals with hs-cTnT, higher decision limit
  Total MIsN/AN/A664 (2.0)3,793 (13)3,362 (12)1,393 (5.0)536 (2.1)
  Length of stay, daysN/AN/A10.2 ± 12.88.6 ± 11.49.2 ± 10.38.5 ± 8.78.5 ± 8.0
UA
 Total UA7,2246,5986,1105,5815,5055,2995,028
  Length of stay, days9.1 ± 11.19.1 ± 11.28.5 ± 10.28.2 ± 9.88.4 ± 11.37.6 ± 8.87.5 ± 9.2
 UA diagnosed at hospitals with cTn
  Total UAN/AN/A5,903 (97)3,075 (55)1,540 (28)1,056 (20)962 (19)
  Length of stay, daysN/AN/A8.5 (10.2)7.2 (9.4)7.0 (13.2)6.2 (7.4)5.9 (6.6)
 UA diagnosed at hospitals with hs-cTnT
  Total UAN/AN/A74 (1.2)1,768 (32)3,269 (59)4,020 (76)3,987 (79)
  Length of stay, daysN/AN/A8.1 ± 7.89.5 ± 10.58.7 ± 10.37.9 ± 9.17.7 ± 9.1
 UA diagnosed at hospitals with hs-cTnT, higher decision limit
  Total UAN/AN/A133 (2.2)738 (13)696 (13)223 (4.2)79 (1.6)
  Length of stay, daysN/AN/A9.7 ± 13.09.1 ± 9.59.9 ± 10.87.9 ± 8.37.8 ± 6.7

Values are n, mean ± SD, or n (%).

py = person-years; UA = unstable angina; other abbreviations as in Table 1.

  • Includes MI and UA cases that were diagnosed in hospitals using the hs-cTnT assay, but with a decision limit for MI of 30 ng/l or 40 ng/l; or in nursing homes, or health care settings other than acute care hospitals. Incidence rate is calculated in relation to the Swedish population >20 years of age.