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Published online 2013 Nov 18. doi: 10.2147/IJGM.S45449

Table 1

Baseline characteristics in the subgroups of men who increased dosage from 50 mg to 100 mg

Subset from smaller study17
Subset from larger study14
Placebo (n = 92)Sildenafil (n = 87)Placebo (n = 139)Sildenafil (n = 125)
Age, mean ± SD, yrs50.2 ± 11.753.0 ± 12.145.2 ± 8.744.9 ± 7.5
Race, n (%)
 White69 (75.0)71 (81.6)127 (91.4)116 (92.8)
 Black11 (12.0)8 (9.2)3 (2.2)2 (1.6)
 Asian01 (1.1)00
 Other12 (13.0)7 (8.0)9 (6.5)7 (5.6)
Weight, mean ± SD (range), kg96.2 ± 23.393.3 ± 17.682.6 ± 14.478.9 ± 12.8
Comorbidities, n (%)
 Hypertension38 (41.3)36 (41.4)23 (16.5)18 (14.1)
 Diabetes17 (18.5)13 (14.9)14 (10.1)15 (12.0)
 Hyperlipidemia and/or hypercholesterolemia28 (30.4)30 (34.5)11 (7.9)6 (4.8)
 Benign prostatic hyperplasia15 (16.3)14 (16.1)4 (2.9)5 (4.0)
 Depression9 (9.8)8 (9.2)1 (0.7)0
 Coronary artery disease3 (3.3)5 (5.7)02 (1.6)
Erectile dysfunction
 Duration, mean (range), yrs3.9 (0–13)4.6 (0–41)2.1 (0–21)2.5 (0–18)
 IIEF-EF mean (range) score14.8 (3–26)14.7 (3–25)15.9 (2–29)a15.0 (1–28)
 Mild/mild-moderate/moderate/severe, %13/32/26/28b14/33/24/29b15/32/34/17b9/31/35/23b
 Etiology (mixed/organic/psychogenic), %25/59/1623/59/1845/15/4040/13/47

Notes: The IIEF-EF score is classified into five categories: no erectile dysfunction (26 to 30), mild (22 to 25), mild to moderate (17 to 21), moderate (11 to 16), and severe (≤10).

aBaseline IIEF-EF results are missing for one patient
bscore was “no erectile dysfunction” for one placebo patient in the smaller study and for three placebo patients and two sildenafil patients in the larger study.

Abbreviations: IIEF-EF, Erectile Function domain of the International Index of Erectile Function; SD, standard deviation; yrs, years; n, number.