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Table 1 Clinical characteristics of the patients

From: Orthostatic intolerance symptoms are associated with depression and diminished quality of life in patients with postural tachycardia syndrome

OIQ Total Score Gender, F(%) Age Height (cm) Weight (kg) BMI Max HR Increment BDI-II PCS MCS
Total (n = 107) 67 (62.6%) 31.1 ± 1.3 166.3 ± 0.9 62.2 ± 1.3 22.3 ± 0.3 42.8 ± 1.2 14.8 ± 0.8 43.4 ± 0.8 39.9 ± 1.1
 0–4 (n = 16) 7 (43.8%) 23.6 ± 3.0 169.2 ± 2.3 63.7 ± 2.8 22.2 ± 0.7 46.4 ± 3.0 7.4 ± 1.0 49.6 ± 2.2 46.9 ± 2.6
 5–9 (n = 15) 9 (60%) 30.5 ± 2.4 168.8 ± 2.6 65.4 ± 3.9 22.7 ± 0.9 38.9 ± 3.0 10.2 ± 1.6 49.0 ± 1.7 45.4 ± 2.1
 10–14 (n = 21) 13 (61.9%) 34.7 ± 4.0 168.5 ± 2.5 64.2 ± 3.6 22.4 ± 0.8 45.9 ± 2.9 13.3 ± 1.9 42.4 ± 1.3 41.0 ± 2.1
 15–19 (n = 25) 16 (64%) 32.2 ± 2.3 165.2 ± 1.9 62.2 ± 3.1 22.6 ± 0.8 43.2 ± 2.8 17.2 ± 1.6 42.2 ± 1.3 38.8 ± 1.8
 20–24 (n = 17) 14 (82.4%) 33.1 ± 2.3 161.5 ± 1.6 58.4 ± 2.4 22.4 ± 0.8 37.2 ± 1.5 19.1 ± 2.0 40.7 ± 1.5 35.9 ± 1.9
 25–29 (n = 4) 4 (100%) 25.3 ± 3.2 160.1 ± 4.5 55.2 ± 4.9 21.4 ± 1.1 42.0 ± 4.6 21.8 ± 2.8 39.3 ± 3.7 29.7 ± 2.0
 30–34 (n = 6) 3 (50%) 32.5 ± 6.3 167.8 ± 3.6 60.7 ± 4.3 21.5 ± 1.2 47.7 ± 3.9 21.5 ± 3.5 36.9 ± 2.2 30.1 ± 8.3
 35–39 (n = 3) 1 (33.3%) 33.7 ± 8.8 164.9 ± 4.2 57.1 ± 5.4 20.9 ± 1.2 40.0 ± 6.2 21.0 ± 4.9 32.3 ± 6.7 33.5 ± 10.1
P value (Kruskall-Wallis)   0.047 0.211 0.81 0.984 0.1 <0.001* <0.001* <0.001*
  1. The values are the mean ± SEM. The Kruskal-Wallis test was performed to compare the mean among the subgroups
  2. Abbreviations: OIQ orthostatic intolerance questionnaire, F female, BMI body-mass index, HR heart rate, BDI-II Beck depression inventory-II, PCS physical component summary scale of Short Form 36, MCS mental component summary scale of Short Form 36
  3. * p < 0.01