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Table 1 Number of deaths (No) and age-adjusted mortality rate (death per 1 million people)) of dermatomyositis and polymyositis according to underlying cause of death (UCD) and multiple causes of death (MCD) in the USA from 1981–1982 to 2019–2020, both sexes

From: Long-term secular trends in dermatomyositis and polymyositis mortality in the USA from 1981 to 2020 according to underlying and multiple cause of death mortality data

 

Dermatomyositis

 

Polymyositis

 

UCD

 

MCD

   

UCD

 

MCD

  

Year

No

Rate

 

No

Rate

 

U/M

 

No

Rate

 

No

Rate

 

U/M

1981–2020

3985

0.34

 

8264

0.71

 

0.48

 

7097

0.61

 

15,344

1.32

 

0.46

1981–1982

208

0.49

 

421

0.99

 

0.50

 

328

0.79

 

755

1.83

 

0.43

1983–1984

208

0.40

 

397

0.93

 

0.44

 

342

0.79

 

796

1.85

 

0.43

1985–1986

208

0.38

 

394

0.89

 

0.43

 

368

0.84

 

876

2.00

 

0.42

1987–1988

177

0.38

 

404

0.88

 

0.43

 

376

0.83

 

912

2.00

 

0.41

1989–1990

174

0.37

 

394

0.83

 

0.44

 

442

0.95

 

946

2.02

 

0.47

1991–1992

168

0.34

 

382

0.78

 

0.44

 

408

0.84

 

990

2.03

 

0.41

1993–1994

186

0.37

 

423

0.83

 

0.44

 

425

0.84

 

944

1.86

 

0.45

1995–1996

182

0.35

 

416

0.79

 

0.44

 

384

0.73

 

918

1.74

 

0.42

1997–1998

188

0.34

 

402

0.74

 

0.47

 

408

0.75

 

875

1.61

 

0.47

1999–2000

213

0.38

 

433

0.77

 

0.49

 

433

0.77

 

909

1.63

 

0.48

2001–2002

199

0.35

 

441

0.77

 

0.45

 

379

0.66

 

778

1.35

 

0.49

2003–2004

227

0.38

 

445

0.75

 

0.51

 

398

0.67

 

776

1.30

 

0.51

2005–2006

213

0.35

 

417

0.68

 

0.51

 

396

0.64

 

766

1.25

 

0.52

2007–2009

206

0.32

 

409

0.64

 

0.51

 

326

0.51

 

648

1.02

 

0.50

2009–2010

203

0.31

 

402

0.61

 

0.51

 

311

0.48

 

636

0.97

 

0.49

2011–2012

214

0.31

 

418

0.61

 

0.51

 

316

0.47

 

647

0.95

 

0.49

2013–2014

209

0.30

 

398

0.56

 

0.53

 

308

0.43

 

597

0.83

 

0.52

2015–2016

198

0.27

 

391

0.54

 

0.51

 

268

0.36

 

550

0.75

 

0.49

2017–2018

190

0.26

 

404

0.54

 

0.48

 

243

0.31

 

473

0.61

 

0.52

2019–2020

214

0.28

 

473

0.60

 

0.46

 

238

0.29

 

552

0.68

 

0.43

  1. Using age structure of year 2000 in the USA as standard population for adjustment