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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Am J Med Sci. 2014 May;347(5):357–363. doi: 10.1097/MAJ.0b013e31829555f0

Table 1.

Study Variables by Cohort and hsCRP group.

Categorical Variables: Frequencies (Percents)
Continuous Variables: Mean (SD) or Geometric Mean [1st quartile, 3rd quartile]
Low (hsCRP ≤ 1) Middle (1 < hsCRP≤ 3) High (hsCRP > 3)

Adult Adolescent p Adult Adolescent p Adult Adolescent p
Variable (N = 159) (N = 165) (N = 160) (N = 71) (N = 165) (N = 46)
hsCRP (mg/dl) 0.49 [0.30, 0.90] 0.32 [0.20, 0.60] <.001 1.74 [1.40, 2.20] 1.79 [1.40, 2.30] 0.680 5.17 [3.90, 6.50] 5.19 [3.80, 6.90] 0.934
Age (yrs) 37.08 (7.91) 16.22 (1.75) 38.16 (7.31) 16.08 (1.61) 37.94 (7.26) 16.25 (1.58)
Gender Female 55 (34.6%) 69 (41.8%) 0.282 76 (47.5%) 38 (53.5%) 0.563 111 (67.3%) 29 (63.0%) 0.680
Smoking 106 (66.7%) 6 (3.7%) <.001 95 (59.4%) 3 (4.3%) <.001 99 (60.0%) 0 (0%) <.001
Alcohol Use 83 (52.2%) 8 (4.9%) <.001 81 (50.6%) 8 (11.6%) <.001 68 (41.2%) 1 (2.3%) <.001
Obesity 43 (27.0%) 51 (30.9%) 0.561 86 (53.8%) 53 (74.6%) 0.007 114 (69.1%) 41 (89.1%) 0.014
Hypertensive Meds 47 (29.6%) 58 (36.3%) 64 (38.8%)
Blood Pressure Pre HTN 37 (23.3%) 34 (20.6%) <.001 38 (23.8%) 21 (29.6%) <.001 42 (25.5%) 14 (30.4%) <.001
  HTN 60 (37.7%) 6 (3.6%) 74 (46.3%) 2 (2.8%) 73 (44.2%) 1 (2.2%)
Metabolic Syndrome 18 (11.3%) 7 (4.2%) 0.037 42 (26.3%) 17 (23.9%) 0.787 66 (40.0%) 15 (32.6%) 0.499
Glucose Tolerance: Impaired 22 (13.8%) 27 (16.5%) 0.444 19 (11.9%) 15 (21.1%) 0.063 33 (20.0%) 13 (28.3%) 0.363
    Diabetic 4 (2.5%) 1 (0.6%) 13 (8.1%) 1 (1.4%) 18 (10.9%) 2 (4.3%)

Fishers exact test (categorical) or Student's t-test (continuous); adjustments made for multiple testing

Data natural log transformed: geometric means with [first quartile, third quartile] presented

Obesity: ≥95th percentile (adolescents), ≥30 BMI (adults)

Metabolic Syndrome: 3 or more of following: Waist circumference ≥ 102 cm (males), ≥88 (females); SBP ≥120/80 mmHg (adolescents), ≥130/85 or HTN Rx (adults); HDL <40 mg/dl (males) or <50 (females); Triglycerides ≥110 mg/dl (adolescents) ≥150 (adults); Fasting glucose ≥110 mg/dl

HTN: BP ≥ 140/90 mmHg or HTN Rx (adults), BP percentile ≥ 95 (adolescents)

PreHTN: BP ≥ 120/80 mmHg. To convert hsCRP to SI units multiply by 9.524