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Table 1 Sociodemographic and health characteristics of the participants

From: Acrosome reaction and chromatin integrity as additional parameters of semen analysis to predict fertilization and blastocyst rates

Variable % (n)
Age (years; mean + SD) 40.0 ± 6.1(69)
Education
 Elementary or middle school 7.2 (5)
 High school 14.5 (10)
 Bachelor’s degree 47.8 (33)
 Post-graduate 30.4 (21)
Residence in the metropolitan area of Mexico City (%) 56.5 (39)
Body mass index (BMI)
 Normal (≤ 24.9) 11.6 (8)
 Overweight (≥ 25) 52.2 (36)
 Obesity (≥ 30) 36.2 (25)
Current smokers 5.8 (4)
Consumption of antioxidantsa 56.5 (39)
Regular exerciseb 49.3 (34)
Hypertensionc 4.3 (3)
Genital infectionsc 7.2 (5)
Varicoceled 8.7 (6)
  1. aAt least 3 times per week (as vitamins E, A, selenium, etc.). bAt least 1 h per day
  2. cDiagnosis in the last 3 months. dCurrent diagnosis. n = 69