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Table 1 Patients’ baseline characteristics according to d-dimer tertile

From: Association between D-dimer and long-term mortality in patients with acute severe hypertension visiting the emergency department

 

All patients

(N = 4,127)

Tertile 1*

(n = 1,376)

Tertile 2

(n = 1,376)

Tertile 3

(n = 1,375)

p value

Age

65 (53–78)

54 (45–62)§¶

68 (57–79)

76 (63–83)

 < 0.001

Women

1,891 (45.8)

478 (34.7)

683 (49.6)

730 (53.1)

 < 0.001

Medical history

 Hypertension

2,304 (57.1)

596 (44.3)

821 (61.0)

887 (66.1)

 < 0.001

 Diabetes mellitus

1,143 (28.7)

242 (18.3)

383 (28.7)

518 (39.0)

 < 0.001

 Dyslipidemia

453 (11.4)

171 (12.9)

164 (12.4)

118 (8.9)

0.002

 Ischemic stroke

379 (9.5)

60 (4.5)

125 (9.4)

194 (14.7)

 < 0.001

 Hemorrhagic stroke

129 (3.3)

20 (1.5)

39 (2.9)

70 (5.3)

 < 0.001

 Coronary artery disease

464 (11.7)

103 (7.8)

176 (13.3)

185 (14.0)

 < 0.001

 Heart failure

234 (5.9)

18 (1.4)

82 (6.2)

134 (10.2)

 < 0.001

 Chronic kidney disease

368 (9.3)

19 (1.4)

107 (8.1)

242 (18.3)

 < 0.001

 End-stage renal disease

182 (4.6)

7 (0.5)

57 (4.3)

118 (8.9)

 < 0.001

Social history

 Cigarette smoking

814 (27.1)

366 (39.8)

241 (24.0)

207 (19.3)

 < 0.001

 Alcohol consumption

1,078 (35.7)

489 (53.0)

341 (33.7)

248 (22.8)

 < 0.001

Triage vitals

 SBP, mmHg

184 (165–200)

181 (163–196)§¶

186 (169–202)

185 (165–203)

 < 0.001

 DBP, mmHg

105 (100–113)

106 (101–114)§¶

104 (97–113)

103 (96–113)

 < 0.001

Laboratory tests

d-dimer, ng/mL

201 (85–504)

63 (38–85)§¶

201 (152–268)

773 (504–1817)

 < 0.001

 eGFR, mL/min/1.73 m2

85 (61–99)

98 (86–106)§¶

83 (63–97)

65 (34–86)

 < 0.001

 Hb, g/dL

13.7 (12.2–15.0)

14.7 (13.6, 15.7)§¶

13.7 (12.4–14.8)

12.5 (10.6–13.9)

 < 0.001

 BNP, pg/mL

75 (26–282)

23 (13–55)§¶

72 (32–232)

221 (80–770)

 < 0.001

 Troponin-I, ng/mL

0.01 (0.01–0.03)

0.01 (0.01–0.01)§¶

0.01 (0.01–0.03)

0.03 (0.01–0.06)

 < 0.001

Urinalysis

 Proteinuriaa

931 (34.0)

108 (13.5)

277 (30.6)

546 (52.8)

 < 0.001

Chest radiography

 Cardiomegaly

576 (14.5)

120 (9.1)

207 (15.8)

249 (18.8)

 < 0.001

Electrocardiography

 LVH

448 (11.4)

107 (8.2)

164 (12.4)

177 (13.5)

 < 0.001

 Myocardial ischemia

355 (9.0)

109 (8.4)

105 (8.0)

141 (10.8)

0.025

 Atrial fibrillation

281 (7.1)

46 (3.5)

96 (7.3)

139 (10.6)

 < 0.001

 Acute HMOD, n (%)

1,900 (46.0)

527 (38.3)

635 (46.1)

738 (53.7)

 < 0.001

  1. Data are presented as n (%) or median (IQR) as appropriate
  2. BNP B-type natriuretic peptide, DBP Diastolic blood pressure, eGFR Estimated glomerular filtration rate, Hb Hemoglobin, HMOD Hypertension-mediated organ damage, IQR Interquartile range, LVH Left ventricular hypertrophy, SBP Systolic blood pressure
  3. *The range of d-dimer levels in tertile 1 was < 116 ng/mL
  4. The range of d-dimer levels in tertile 2 is 116–356 ng/mL
  5. The range of d-dimer level in tertile 3 was > 356 ng/mL
  6. §Post hoc p: tertile 1 versus tertile 2: statistically significant, p < 0.05
  7. Post hoc p: tertile 1 versus tertile 3: statistically significant, p < 0.05
  8. Post hoc p: tertile 2 vs. tertile 3: statistically significant p < 0.05
  9. aProteinuria was defined as dipstick urinalysis result ≥ 1 +