Table 1 Demographic and medical history before propensity score matching.

From: Association between the COVID-19 pandemic and cardiopulmonary function in acute coronary syndrome patients without SARS-CoV-2 infection

Characteristic

All

Pre-pandemic

During-pandemic

Post-pandemic

P

(n = 7,650)

(n = 2,252)

(n = 3,878)

(n = 1,520)

Age, years

57.20 (9.09)

56.64 (9.01)

57.54 (8.98)

57.13 (9.47)

0.001

Male, n (%)

5,934 (77.6%)

1,756 (77.98%)

2,992 (77.15%)

1,186 (78.03%)

0.677

BMI, kg/m2

25.8 (3.20)

25.69 (3.16)

25.89 (3.21)

25.88 (3.25)

0.040

Syntax score

10.3 (7.83)

10.25 (7.96)

10.40 (7.77)

10.22 (7.78)

0.658

Medical history, n (%)

     

Smoking

    

< 0.001

Never

3,627 (47.4%)

1,010 (44.85%)

1,825 (47.06%)

792 (52.11%)

 

Former

1,289 (16.8%)

412 (18.29%)

658 (16.97%)

219 (14.41%)

 

Active

2,734 (35.7%)

830 (36.86%)

1,395 (35.97%)

509 (33.49%)

 

Drinking

    

0.004

Never

5,642 (73.8%)

1,629 (72.34%)

2,913 (75.12%)

1,100 (72.37%)

 

Former

513 (6.71%)

170 (7.55%)

257 (6.63%)

86 (5.66%)

 

Active

1,495 (19.5%)

453 (20.12%)

708 (18.26%)

334 (21.97%)

 

Hypertension

4,518 (59.1%)

1,315 (58.39%)

2,295 (59.18%)

908 (59.74%)

0.696

Diabetes mellitus

2,078 (27.2%)

576 (25.58%)

1,070 (27.59%)

432 (28.42%)

0.109

Previous AMI

1,352 (17.7%)

436 (19.36%)

606 (15.63%)

310 (20.39%)

< 0.001

Stroke

637 (8.33%)

216 (9.59%)

278 (7.17%)

143 (9.41%)

0.001

Previous PCI

2,839 (37.1%)

780 (34.64%)

1,378 (35.53%)

681 (44.80%)

< 0.001

Heart failure

39 (0.51%)

10 (0.44%)

18 (0.46%)

11 (0.72%)

0.423

Atrial fibrillation

224 (2.93%)

62 (2.75%)

93 (2.40%)

69 (4.54%)

< 0.001

CKD

34 (0.44%)

7 (0.31%)

15 (0.39%)

12 (0.79%)

0.071

Arrhythmia

272 (3.56%)

92 (4.09%)

107 (2.76%)

73 (4.80%)

< 0.001

Presentation

    

< 0.001

UA

6,800 (88.9%)

1,912 (84.91%)

3,487 (89.92%)

1,401 (92.17%)

 

NSTEMI

549 (7.18%)

205 (9.10%)

260 (6.70%)

84 (5.53%)

 

STEMI

301 (3.92%)

135 (5.99%)

131 (3.38%)

35 (2.30%)

 

Target vessel

    

0.753

D

342 (4.47%)

98 (4.35%)

165 (4.25%)

79 (5.20%)

 

LAD

3,707 (48.5%)

1,074 (47.69%)

1,907 (49.17%)

726 (47.76%)

 

LCX

1,242 (16.2%)

364 (16.16%)

622 (16.04%)

256 (16.84%)

 

LM

251 (3.28%)

81 (3.60%)

122 (3.15%)

48 (3.16%)

 

RCA

2,108 (27.6%)

635 (28.20%)

1,062 (27.39%)

411 (27.04%)

 
  1. Bold value indicates a statistically significant difference.
  2. A p-values of the relationship trends of the three groups of variables are also given in the table.
  3. Data are mean ± SD, median (interquartile range), or number (%).
  4. Abbreviations: BMI, body mass index; LEVF, left ventricular ejection fraction; AMI, acute myocardial infarction; CKD, chronic kidney disease; UA, Unstable Angina; STEMI, ST-segment elevation myocardial infarction; NSTEMI, Non-ST-segment elevation myocardial infarction; D, diagonal branch; LAD, Left anterior descending artery; LCx, Left circumflex artery; LM, Left main trunk; RCA, Right coronary artery.
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