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Table 1 Baseline characteristics of the cohort stratified by socioeconomic status

From: The associations between socioeconomic status and risk of Staphylococcus aureus bacteremia and subsequent endocarditis – a Danish nationwide cohort study

Highest attained education

Basic school

Upper secondary

Vocational

Short/medium length higher education

Master’s Degree/Ph.D.

N (%)

1,230,283 (36.2)

161,342 (4.8)

1,291,659 (38.1)

553,451 (16.3)

158,201 (4.7)

Age (IQR)

50.9 (36.5–70.5)

30.0 (30.0–37.3)

41.4 (30.0–52.7)

38.9 (30.0–49.9)

38.3 (30.0–49.8)

Male (%)

543,959 (44.2)

80,772 (50.1)

732,954 (56.8)

236,722 (42.8)

100,711 (63.7)

Diabetes (%)

2384 (0.2)

212 (0.1)

1848 (0.1)

944 (0.2)

222 (0.1)

Hypertension (%)

843 (0.1)

255 (0.03)

1337 (0.2)

555 (0.1)

106 (0.1)

Periphere vascular disease (%)

8686 (0.7)

173 (0.1)

4840 (0.4)

1069 (0.2)

233 (0.2)

Acute myocardial infarction (%)

29,126 (2.4)

476 (0.3)

17,577 (1.4)

3862 (0.7)

1232 (0.8)

Valvular heart disease (%)

1754 (0.1)

83 (0.1)

1126 (0.1)

337 (0.1)

124 (0.1)

Chronic heart failure (%)

6555 (0.5)

153 (0.1)

3346 (0.3)

830 (0.2)

288 (0.2)

Mild liver disease (%)

6999 (0.6)

437 (0.3)

5411 (0.4)

1438 (0.3)

361 (0.2)

Severe liver disease (%)

2431 (0.2)

318 (0.2)

3103 (0.2)

1030 (0.2)

453 (0.3)

Acute renal failure (%)

1026 (0.1)

75 (0.1)

644 (0.1)

239 (0.1)

60 (0.1)

Chronical renal failure (%)

1014 (0.1)

79 (0.1)

715 (0.1)

220 (0.1)

59 (0.1)

Other renal disease (%)

1446 (0.1)

151 (0.1)

1397 (0.1)

542 (0.1)

152 (0.1)

Cancer (%)

24,504 (2.0)

1011 (0.6)

15,701 (1.2)

6374 (1.2)

1689 (1.1)

COPD (%)

24,422 (2.0)

475 (0.3)

10,137 (0.8)

2440 (0.4)

493 (0.3)

Psoriasis (%)

5400 (0.4)

311 (0.2)

3816 (0.3)

1368 (0.3)

317 (0.2)

Atopic dermatitis (%)

754 (0.1)

327 (0.2)

1278 (0.1)

858 (0.2)

247 (0.2)

Rheumatic disease (%)

44,246 (3.6)

1561 (1.0)

30,506 (2.4)

10,474 (1.9)

2326 (1.5)

HIV (%)

485 (0.04)

103 (0.1)

370 (0.03)

146 (0.03)

45 (0.03)

Surgical procedurea (%)

6123 (0.5)

2363 (1.5)

11,576 (0.9)

6842 (1.2)

1448 (0.9)

Prosthetic deviceb (%)

 • Cardiac

74 (0.01)

12 (0.01)

97 (0.01)

49 (0.01)

10 (0.01)

 • Other

4755 (0.4)

1515 (0.9)

7742 (0.01)

3207 (0.6)

835 (0.5)

Chronic dialysis treatmentc (%)

33 (0.002)

7 (0.004)

18 (0.001)

10 (0.002)

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  1. Socioeconomic status is defined as highest educational level prior to study inclusion
  2. COPD, chronic obstructive pulmonary disease; HIV, human immune deficiency virus
  3. aAny surgical procedure within 6 months prior to study entry. bCardiac devices: Pacemaker, prosthetic heart valves (mechanic/biological), cardiovascular stents. Other devices: Hip and knee prosthesis, bone fracture treated with metal implants cDialysis treatment (irrespective of indication) within 6 months prior to study entry