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Table 3 Risk factors influencing long term survival of patients in two selected centers

From: Age – related treatment strategy and long-term outcome in acute myocardial infarction patients in the PCI era

 

≤65 years (N = 1368)

>65 years (N = 1368)

Interaction

 

N

HR (95% CI)

p

N

HR (95% CI)

p

p

Age (10 years)

-

1.76 (1.35; 2.28)

<0.001

-

2.03 (1.75; 2.35)

<0.001

0.458

Men

1116

1.18 (0.78; 1.79)

0.441

856

0.90 (0.76; 1.08)

0.262

0.227

DM

303

1.91 (1.38; 2.65)

<0.001

574

1.41 (1.18; 1.68)

<0.001

0.085

Previous MI

219

2.02 (1.42; 2.87)

<0.001

385

1.46 (1.20; 1.76)

<0.001

0.189

Killip I

1114

Basal category

 

958

Basal category

  

Killip II

155

2.52 (1.67; 3.81)

<0.001

334

1.80 (1.47; 2.22)

<0.001

0.298

Killip III

39

6.04 (3.48; 10.48)

<0.001

104

3.14 (2.36; 4.18)

<0.001

0.051

Killip IV

53

12.24 (7.94; 18.89)

<0.001

75

5.65 (4.14; 7.70)

<0.001

0.030

PCI

1169

0.60 (0.42; 0.88)

0.008

1109

0.46 (0.38; 0.55)

<0.001

0.202

No PCI

199

1.66 (1.14; 2.41)

370

2.19 (1.83; 2.63)

STEMI + new onset of LBBB

948

1.02 (0.72; 1.43)

0.924

990

1.21 (1.00; 1.47)

0.056

0.312

NonSTEMI

420

0.98 (0.70; 1.38)

489

0.83 (0.68; 1.01)

Final TIMI flow 2-3

1162

0.20 (0.10; 0.41)

<0.001

1096

0.32 (0.22; 0.47)

<0.001

0.151

Final TIMI flow 0-1

19

5.00 (2.43; 10.18)

46

3.13 (2.11; 4.65)

Single vessel disease

532

Basal category

 

339

Basal category

  

Two vessel disease

402

1.30 (0.86; 1.96)

0.223

431

1.53 (1.13; 2.06)

0.006

0.371

Three vessel disease

359

2.10 (1.43; 3.09)

<0.001

594

2.24 (1.70; 2.95)

<0.001

0.508

Left main artery disease

11

4.12 (1.28; 13.28)

0.018

8

5.85 (2.50; 13.67)

<0.001

0.564

IRA

       

Left main

18

4.52 (1.77; 11.57)

0.002

28

5.26 (3.26; 8.48)

<0.001

0.995

LAD incl. its branches

490

1.77 (1.17; 2.66)

0.006

556

1.10 (0.86; 1.41)

0.431

0.093

LCX incl. its branches

269

1.36 (0.83; 2.24)

0.222

221

1.09 (0.80; 1.48)

0.608

0.546

RCA incl. its branches

444

Basal category

 

401

Basal category

  

Bypass graft

12

0.05 (0.00; 545.31)

0.524

20

0.80 (0.30; 2.17)

0.662

-

IRA not known

135

2.69 (1.63; 4.43)

<0.001

253

2.37 (1.83; 3.05)

<0.001

0.815

  1. N number of patients in given category.
  2. HR hazard ratio based on Cox proportional hazards model supplemented by its statistical significance.
  3. Influence of age category of patients on HR value within these age categories is analyzed using interaction term in Cox proportional hazards model.