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Table 1 Baseline characteristics for patients with AMI by morbidity

From: Association of treatments for acute myocardial infarction and survival for seven common comorbidity states: a nationwide cohort study

Number of cases Diabetes (122,228) COPD (89,221) Hypertension (302,388) Chronic heart failure (33,813) Chronic renal failure (31,029) Cerebrovascular disease (51,883) Peripheral vascular disease (27,627) No comorbidity (198,203) All (693,388) Missing, N (%)
Age (years) 72.7 (63–80) 73.5 (64–81) 73.4 (63.1–81.5) 80.4 (73–86) 79 (71.3–85) 78.4 (70.5–84.7) 74.6 (66–81.4) 65.2 (54.8–76.9) 70.7 (59.4–80.1) 0.1 (1025)
Sex (female) 36.1 (44,063) 41.2 (36,709) 38.9 (117,421) 44.6 (15,062) 37.1 (11,507) 41.1 (21,277) 31.2 (8607) 29.1 (81,270) 34.5 (238,569) 0.3 (1923)
Smoker 9.4 (65,000)
Never 39.8 (44,974) 27.2 (22,837) 39.5 (111,727) 43.0 (12,979) 42.8 (11,945) 40.5 (18,978) 25.4 (6527) 37.1 (90,868) 37.8 (237,432)
Ex/current 60.2 (68,147) 72.8 (61,126) 60.5 (171,255) 57.0 (17,179) 57.2 (15,958) 59.5 (27,904) 74.6 (19,192) 62.9 (153,836) 62.2 (390,956)
Year 0.0 (0)
2003–2006 29.8 (36,462) 32.1 (28,670) 31.1 (94,080) 36.2 (12,239) 23.7 (7343) 32.2 (16,702) 35.6 (9826) 39.9 (112,069) 35.3 (244,499)
2007–2010 41.5 (50,748) 40.8 (36,432) 41.7 (126,222) 38.8 (13,110) 44.1 (13,681) 41.3 (21,416) 39.3 (10,852) 37.1 (103,980) 39.5 (274,085)
2011–2013 28.7 (35,018) 27.0 (24,119) 27.2 (82,086) 25.0 (8464) 32.2 (10,005) 26.5 (13,765) 25.2 (6949) 23.0 (64,530) 25.2 (174,804)
IMD score 20.3 (11.7–34.8) 21.2 (12.1–36.2) 18.0 (10.4–31.3) 18.8 (11.1–32.5) 18.6 (10.8–32.1) 18.9 (10.9–33.1) 20.0 (11.5–34.6) 18.4 (10.7–32.1) 18.3 (10.6–31.8) 8.2 (56,733)
Systolic blood pressure (mmHg) 139 (120–159) 137 (119–157) 141 (121–161) 133 (114–154) 136 (116–157) 138 (118–158) 137 (118–158) 136 (119–154) 21.6 (14.9–27) 19.3 (133,701)
Heart rate (bpm) 83 (70–99) 84 (70–100) 80 (67–94) 87 (72–104) 83 (70–98) 82 (69–98) 82 (70–98) 75 (64–90) 79 (66–93) 19.0 (131,708)
Cholesterol (mmol/l) 4.2 (3.4–5) 4.7 (3.9–5.7) 4.6 (3.8–5.6) 4.1 (3.4–5) 4 (3.3–5) 4.2 (3.5–5.1) 4.2 (3.5–5.2) 5.30 (4.4–6.2) 4.9 (4–5.9) 35.7 (247,700)
Creatinine (μmol/l) 99 (80–132) 92 (75–116) 95 (78–119) 117 (91–157) 168 (124–241) 102 (82–133) 103 (82–139) 87 (74–102) 91 (76–112) 44.5 (308,897)
AMI diagnosis 0.0 (0)
STEMI 27.8 (33,993) 30.3 (27,013) 33.2 (100,356) 14.8 (5013) 18.4 (5712) 25.3 (13,146) 25.8 (7115) 49.7 (139,394) 39.6 (274,220)
NSTEMI 72.2 (88,235) 69.7 (62,208) 66.8 (202,032) 85.2 (28,800) 81.6 (25,317) 74.7 (38,737) 74.3 (20,512) 50.3 (141,185) 60.5 (419,168)
Previous CABG 4.9 (5011) 2.9 (2166) 4.2 (10,572) 2.1 (583) 2.8 (713) 2.9 (1264) 4.5 (1050) 2.9 (6574) 3.5 (19,840) 17.4 (120,385)
Previous PCI 26.2 (26,644) 25.0 (18,601) 29.5 (74,856) 11.6 (3275) 17.4 (4447) 17.6 (7668) 23.2 (5456) 32.6 (74,166) 29.6 (169,503) 17.4 (120,385)
GRACE risk score 56.0 (388,271)
Lowest (≤ 70) 4.3 (2595) 4.3 (1965) 5.0 (7517) 0.8 (135) 1.0 (184) 1.5 (388) 2.4 (311) 11.5 (11,760) 7.1 (21,686)
Low (71–87) 8.0 (4863) 7.3 (3309) 8.7 (13,252) 1.8 (288) 2.2 (385) 3.7 (1000) 5.5 (701) 16.1 (16,437) 11.0 (33,539)
Intermediate to high (≥ 88) 87.7 (53,095) 88.4 (39,979) 86.3 (131,031) 97.4 (16,077) 96.8 (17,365) 94.8 (25,338) 92.1 (11,862) 72.5 (74,235) 81.9 (249,892)
Number of comorbidities 2 (2–3) 2 (1–3) 1 (1–2) 3 (2–3) 3 (2–4) 2 (2–3) 3 (2–3) N/A 1 (0–2) 7.9 (124,218)
Total 630,613 599,586 620,866 572,496 620,161 604,733 599,402 693,388 570,884  
  1. COPD chronic obstructive pulmonary disease, IMD index of multiple deprivation (continuous), AMI acute myocardial infarction, STEMI ST-elevated myocardial infarction, NSTEMI non-ST-elevated myocardial infarction, CABG coronary artery bypass graft, Primary PCI primary percutaneous coronary intervention; Global Registry of Acute Coronary Events (GRACE) risk score (categorised into lowest [< 70], low [70 to 87], and intermediate-to-high risk [≥ 88]); missing column refers to the level of missing for each variable in the dataset