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Table 1 Baseline Characteristics

From: Clinical significance of unexplained persistent sinus tachycardia in women with structurally normal heart during the peripartum period

  Sinus Tachycardia (N = 78) Control (N = 1025)
Demographics
 Age 30.38 ± 5.34a 31.37 ± 5.43a
Race
 White 28 (35.9) 499 (48.7)
 African American/ Black 15 (19.2) 116 (11.3)
 Asian 14 (18.0) 97 (9.5)
 Native American/Alaskan 1 (1.3) 10 (1.0)
 Native Hawaiian/Pacific Islander 0 (0) 1 (0.10)
 Multiracial/Other 14 (18.0) 241 (23.5)
 Unknown 6 (7.7) 61 (6.0)
Comorbidities
 Hypertension 7 (9.0) 41 (4.0)
 Diabetes 0 (0) 11 (1.1)
 Chronic Kidney Disease 0 (0) 1 (0.10)
 Chronic Obstructive Pulmonary Disease 0 (0) 1 (0.10)
 Parity 1.0 (1.0–2.0)b 2.0 (1.0–2.0)b
 Multiple Gestational Pregnancy 2 (2.6) 20 (2.0)
  1. a Mean ± Standard deviation
  2. b Median (1st Quartile-3rd Quartile)
  3. N (%) unless otherwise specified
  4. Note: There was no statistically significant difference noted between the sinus tachycardia and controls for baseline characteristics