Table 1 Demographics of individuals in California emergency department with principal diagnosis code of CA-Sa, 2016–2019 (n = 844,692 cases; n = 38,090,296 total sample)

Sex

 Male

465,350

55%

16,323,176

42.9%

 Female

379,303

45%

21,765,363

57.1%

 Missing

39

< 1%

1,757

< 1%

Insurance

 Public

575,449

68%

24,616,861

64.6%

 Private

191,367

23%

10,606,963

27.8%

 Uninsured

77,537

9%

2,809,905

7.4%

 Missing

339

< 1%

56,567

< 1%

Age

 Median

45 years

44 years

 18–34

277,296

33%

12,941,938

34%

 35–64

440,765

52%

17,289,610

45.4%

 65+

126,631

15%

7,858,748

21.6%

Race/Ethnicity

 NH-White

390,419

46.2%

15,130,737

39.7%

 NH-Black

87,431

10.4%

4,426,486

11.6%

 NH-Asian

32,737

3.9%

2,324,293

6.1%

 NH-Islander

24,349

2.9%

1,237,952

3.3%

 NH-AIAN

5,195

< 1%

177,545

< 1%

 Hispanic

286,243

33.9%

13,867,895

36.4%

 Unknown

8,838

1.1%

436,942

1.1%

 NH-Other

9,480

1.1%

488,446

1.3%

Principal Diagnosis

 Cellulitis and acute lymphangitis

543,162

62.6%

 Erysipelas

1,090

< 1%

 Cutaneous abscess, furuncle and carbuncle

307,219

35.4%

 Impetigo

10,911

1.3%

 Other local infections of skin and subcutaneous tissue

3,717

< 1%

 Other specified disease of hair and hair follicles

2,178

< 1%