Table 4 Clinical outcomes according to the diagnosis of myocardial injury after noncardiac surgery in the entire population.

From: Preoperative cardiac troponin below the 99th-percentile upper reference limit and 30-day mortality after noncardiac surgery

 

Before propensity score matching

After propensity score matching

LOD

Mild elevation

LOD

Mild elevation

No diagnosed MINS (N = 7314)

Diagnosed MINS (N = 644)

No diagnosed MINS (N = 3617)

Diagnosed MINS (N = 840)

No diagnosed MINS (N = 3484)

Diagnosed MINS (N = 385)

No diagnosed MINS (N = 3185)

Diagnosed MINS (N = 684)

30-day mortality

99 (1.4)

65 (10.1)

91 (2.5)

87 (10.4)

58 (1.7)

43 (11.2)

85 (2.7)

76 (11.1)

HR (95%CI)

1 [Reference]

7.83 (5.72–10.7)

1.87 (1.41–2.49)

8.01 (6.00–10.68)

1 [Reference]

7.06 (4.76–10.47)

1.61 (1.16–2.25)

6.99 (4.97–9.84)

p-Value

 

 < 0.001

 < 0.001

 < 0.001

 

 < 0.001

0.005

 < 0.001

In-hospital mortality

136 (1.9)

84 (13.0)

126 (3.5)

120 (14.3)

81 (2.3)

57 (14.8)

115 (3.6)

106 (15.5)

HR (95%CI)

1 [Reference]

3.34 (2.52–4.41)

1.49 (1.17–1.91)

4.01 (3.12–5.16)

1 [Reference]

3.30 (2.33–4.67)

1.34 (1.00–1.78)

3.82 (2.84–5.14)

p-Value

 

 < 0.001

0.001

 < 0.001

 

 < 0.001

0.05

 < 0.001

  1. Data are presented as n (%).
  2. 30-day peak hs-cTn I was available in 4086/7958 (51.3%) in LOD and 2529/4457 (56.7%) in mild elevation groups of the entire population.
  3. 30-day peak hs-cTn I was available in 2142/3869 (55.4%) in LOD and 2211/3869 (57.1%) in mild elevation groups of the propensity score matched population.
  4. LOD limit of detection; HR hazard ration; CI confidential interval; MINS myocardial injury after noncardiac surgery.