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Table 1 Demographics and Metal and Biomarker concentrations by Tampon Use

From: Tampon use, environmental chemicals and oxidative stress in the BioCycle study

  Tampon Users (n = 158) Non-Tampon Users (n = 97)
Demographics
 Race/ethnicity (%)
  White 79. 26.88
  Black 8.55 39.78
  Other 11.84 33.33
 Education (%)
   < High school 10.53 17.20
   > High school 89.47 82.80
 Marital Status (%)
  Ever Married 31.58 18.28
  Single 68.42 81.72
 Smoking status (%)
  Yes 5.26 1.08
  No 94.74 98.92
 Birth Control Use (%)
  Yes 62.00 40.86
  No 38.00 59.14
 Parous (%) 31.54 20.65
 Nulliparous (%) 68.46 79.35
 Physical Activity (%)
  Low 5.26 13.98
  Medium 30.26 46.24
  High 64.47 39.78
 Age [years (mean (SD))] 27.87 (8.66) 27.16 (7.73)
 BMI [(kg/m2 (mean (SD))] 23.91 (3.63) 24.43 (4.27)
Metal Concentrations
 Cadmium [μg/L (GM (SD))]a 0.26 (1.90) 0.33 (1.90)
 Lead [μg/dL (GM (SD))]a 0.85 (1.53) 1.01 (1.62)
 Mercury [μg/L (GM (SD))]a 1.08 (2.75) 1.01 (2.47)
Biomarker Concentrations
 TBARS [nmol/mL (GM (SD))]b 0.85 (1.27) 0.85 (1.25)
 PON1A [μmol/min/L (GM (SD))]b 113.12 (1.24) 111.39 (1.22)
 PON1P [μmol/min/L (GM (SD))]b 179.35 (1.84) 212.90 (1.83)
 Isoprostane [pg/mL (GM (SD))]b 47.80 (1.37) 46.11 (1.45)
 CRP [mg/L (GM (SD))]b 1.32 (6.48) 3.17 (13.60)
  1. aGeometric mean (standard deviation) blood metal levels
  2. bGeometric mean biomarker concentrations (standard deviation) measured from the created cycle variable