Table 5 Incidence proportion of acute myocardial infarction in patients undergoing elective total hip arthroplasty during selected risk windows, crude and stratified by selected characteristics

Crude

86,529

239

0.28% (0.24%, 0.31%)

86,530

318

0.37% (0.33%, 0.41%)

86,530

432

0.50% (0.45%, 0.55%)

86,532

561

0.65% (0.59%, 0.70%)

86,535

805

0.93% (0.87%, 0.99%)

Stratifications by:

 Age

   ≥ 18–55

17,539

12

0.07% (0.03%, 0.11%)

17,539

18

0.10% (0.06%, 0.15%)

17,539

33

0.19% (0.12%, 0.25%)

17,539

45

0.26% (0.18%, 0.33%)

17,541

70

0.40% (0.31%, 0.49%)

  56–65

28,025

42

0.15% (0.10%, 0.20%)

28,026

58

0.21% (0.15%, 0.26%)

28,026

86

0.31% (0.24%, 0.37%)

28,027

120

0.43% (0.35%, 0.50%)

28,027

183

0.65% (0.56%, 0.75%)

  66–75

26,043

84

0.32% (0.25%, 0.39%)

26,043

105

0.40% (0.33%, 0.48%)

26,043

136

0.52% (0.43%, 0.62%)

26,044

186

0.71% (0.61%, 0.82%)

26,044

257

0.99% (0.87%, 1.11%)

  76–< 86

14,922

101

0.68% (0.55%, 0.81%)

14,922

137

0.92% (0.77%, 1.07%)

14,922

177

1.19% (1.01%, 1.36%)

14,922

210

1.41% (1.22%, 1.60%)

14,923

295

1.98% (1.75%, 2.20%)

 Sex

  Male

40,445

123

0.30% (0.25%, 0.36%)

40,446

169

0.42% (0.36%, 0.48%)

40,446

238

0.59% (0.51%, 0.66%)

40,447

318

0.79% (0.70%, 0.87%)

40,450

471

1.16% (1.06%, 1.27%)

  Female

46,062

115

0.25% (0.21%, 0.30%)

46,062

148

0.32% (0.27%, 0.37%)

46,062

193

0.42% (0.36%, 0.48%)

46,063

242

0.53% (0.46%, 0.59%)

46,063

333

0.72% (0.65%, 0.80%)

  Unknown

22

1

4.55% (0.12%, 22.84%)

22

1

4.55% (0.12%, 22.84%)

22

1

4.55% (0.12%, 22.84%)

22

1

4.55% (0.12%, 22.84%)

22

1

4.55% (0.12%, 22.84%)

 Race

  White

77,834

221

0.28% (0.25%, 0.32%)

77,835

293

0.38% (0.33%, 0.42%)

77,835

397

0.51% (0.46%, 0.56%)

77,836

509

0.65% (0.60%, 0.71%)

77,838

731

0.94% (0.87%, 1.01%)

  Black or African American

5,729

10

0.17% (0.07%, 0.28%)

5,729

15

0.26% (0.13%, 0.39%)

5,729

23

0.40% (0.24%, 0.57%)

5,729

35

0.61% (0.41%, 0.81%)

5,729

48

0.84% (0.60%, 1.07%)

  Asian

209

1

0.48% (0.01%, 2.64%)

209

1

0.48% (0.01%, 2.64%)

209

1

0.48% (0.01%, 2.64%)

210

2

0.95% (0.12%, 3.40%)

210

2

0.95% (0.12%, 3.40%)

  Other/Unknown

2,757

7

0.25% (0.07%, 0.44%)

2,757

9

0.33% (0.11%, 0.54%)

2,757

11

0.40% (0.16%, 0.63%)

2,757

15

0.54% (0.27%, 0.82%)

2,758

24

0.87% (0.52%, 1.22%)

 Type 1 Diabetes during baseline

  Yes

337

8

2.37% (0.75%, 4.00%)

337

9

2.67% (0.95%, 4.39%)

337

10

2.97% (1.16%, 4.78%)

337

11

3.26% (1.37%, 5.16%)

337

13

3.86% (1.80%, 5.91%)

  No

86,192

231

0.27% (0.23%, 0.30%)

86,193

309

0.36% (0.32%, 0.40%)

86,193

422

0.49% (0.44%, 0.54%)

86,195

550

0.64% (0.58%, 0.69%)

86,198

792

0.92% (0.86%, 0.98%)

 Type 2 Diabetes during baseline

  Yes

10,364

57

0.55% (0.41%, 0.69%)

10,365

80

0.77% (0.60%, 0.94%)

10,365

101

0.97% (0.79%, 1.16%)

10,366

129

1.24% (1.03%, 1.46%)

10,367

200

1.93% (1.66%, 2.19%)

  No

76,165

182

0.24% (0.20%, 0.27%)

76,165

238

0.31% (0.27%, 0.35%)

76,165

331

0.43% (0.39%, 0.48%)

76,166

432

0.57% (0.51%, 0.62%)

76,168

605

0.79% (0.73%, 0.86%)

 Revisional surgery on the same day as index surgery

  Yes

34,555

72

0.21% (0.16%, 0.26%)

34,555

105

0.30% (0.25%, 0.36%)

34,555

148

0.43% (0.36%, 0.50%)

34,555

204

0.59% (0.51%, 0.67%)

34,555

276

0.80% (0.70%, 0.89%)

  No

51,974

167

0.32% (0.27%, 0.37%)

51,975

213

0.41% (0.35%, 0.46%)

51,975

284

0.55% (0.48%, 0.61%)

51,977

357

0.69% (0.62%, 0.76%)

51,980

529

1.02% (0.93%, 1.10%)

 Total length of hospital stay

  1–5 days

83,029

150

0.18% (0.15%, 0.21%)

83,030

225

0.27% (0.24%, 0.31%)

83,030

327

0.39% (0.35%, 0.44%)

83,032

449

0.54% (0.49%, 0.59%)

83,035

683

0.82% (0.76%, 0.88%)

  6–10 days

2,425

58

2.39% (1.78%, 3.00%)

2,425

62

2.56% (1.93%, 3.18%)

2,425

70

2.89% (2.22%, 3.55%)

2,425

75

3.09% (2.40%, 3.78%)

2,425

84

3.46% (2.74%, 4.19%)

   > 10 days

1,075

31

2.88% (1.88%, 3.88%)

1,075

31

2.88% (1.88%, 3.88%)

1,075

35

3.26% (2.19%, 4.32%)

1,075

37

3.44% (2.35%, 4.53%)

1,075

38

3.53% (2.43%, 4.64%)

 Use of implanted material during surgery on the same day as index surgery

  Yes

1,383

19

1.37% (0.76%, 1.99%)

1,383

23

1.66% (0.99%, 2.34%)

1,383

27

1.95% (1.22%, 2.68%)

1,383

30

2.17% (1.40%, 2.94%)

1,384

37

2.67% (1.82%, 3.52%)

  No

85,146

220

0.26% (0.22%, 0.29%)

85,147

295

0.35% (0.31%, 0.39%)

85,147

405

0.48% (0.43%, 0.52%)

85,149

531

0.62% (0.57%, 0.68%)

85,151

768

0.90% (0.84%, 0.97%)

 Medical history of acute myocardial infarction

  Yes

485

64

13.20% (10.18%, 16.21%)

485

78

16.08% (12.81%, 19.35%)

485

95

19.59% (16.06%, 23.12%)

485

115

23.71% (19.93%, 27.50%)

485

145

29.90% (25.82%, 33.97%)

  No

86,044

175

0.20% (0.17%, 0.23%)

86,045

240

0.28% (0.24%, 0.31%)

86,045

337

0.39% (0.35%, 0.43%)

86,047

446

0.52% (0.47%, 0.57%)

86,050

660

0.77% (0.71%, 0.83%)