Table 1 The baseline demographic and clinical characteristics

From: An open label, randomized, fixed-dose, crossover study comparing efficacy and safety of sildenafil citrate and saffron (Crocus sativus Linn.) for treating erectile dysfunction in men naïve to treatment

Variables Sildenafil (n=173) Saffron (n=173) P-value
Mean age, years 46.4±8.2 46.8±8.6 NS
Mean weight (kg) 79.4±11.5 79.8±12.6 NS
Mean BMI (kg m−2) 26.4±2.7 26.8±2.8 NS
Mean duration of ED (months) 18.9±6.7 18.6±7.1 NS
Type of ED, n (%)
 Vasculogenic 125 (72.2) 127 (73.4) NS
 Neurogenic 6 (3.5) 4 (2.3) NS
 Psychogenic 42 (24.3) 42 (24.3) NS
ED severity, n (%)
 Mild 25 (12.7) 23 (13.3) NS
 Moderate 73 (31.4) 77 (44.5) NS
 Severe 75 (55.9) 73 (42.2) NS
Serum hormones, mean±s.d.
 Testosterone (nmol l−1) 12.2±3.3 11.8±3.2 NS
 LH (IU l−1) 8.2±2.4 8.4±2.1 NS
 FSH (IU l−1) 9.4±2.1 9.2±2.2 NS
 TSH (mIU ml−1) 1.7±0.8 1.8±0.7 NS
 Estradiol (pg ml−1) 13.8±4.1 14.2±4.0 NS
 PRL (pmol l−1) 356±104 360±110 NS
Education level, n (%)
 None 0 (0) 0 (0) NS
 Primary school 29 (16.8) 27 (15.6) NS
 High school 92 (53.2) 90 (52.0) NS
 Graduate 52 (30.0) 56 (32.4) NS
Occupational status, n (%)
 Employed 113 (65.3) 116 (67.1) NS
 Unemployed 30 (17.3) 31 (17.9) NS
 Retired 30 (17.3) 26 (15.0) NS
Comorbid conditions, n (%)
 Diabetes mellitus 19 (11.0) 18 (10.4) NS
 Hyperlipidemia 24 (13.9) 26 (15.0) NS
 Coronary artery disease 9 (5.2) 8 (4.6) NS
 Cigarette smoking 38 (22.0) 35 (20.2) NS
  1. Abbreviations: BMI, body mass index; FSH, follicle-stimulating hormone; LH, luteinizing hormone; NS, not significant; PRL, prolactin; TSH, thyroid stimulating hormone.