Table 3 Results of each study

Sarwer et al. [10]

IIEF: erectile function

19.9 (11.6)

21.3 (10.4)

0.910

Aleid et al. [29]

IIEF: erectile function^#1

13.0

–

<0.02

IIEF: orgasm function

7.1 (3.9)

7.2 (4.0)

>0.99

IIEF: orgasm function

8.0

–

<0.004

IIEF: sexual desire

6.4 (2.5)

7.6 (2.2)

0.058

IIEF: sexual desire

6.0

–

<0.002

IIEF: intercourse satisfaction

7.3 (5.6)

8.5 (5.2)

0.673

IIEF: intercourse satisfaction

6.0

–

<0.004

IIEF: overall satisfaction

6.1 (2.8)

7.0 (2.6)

0.266

IIEF (total)

64.0

66.5

<0.001

Reis et al. [24]

IIEF-5

19.7 ± 6.6

23.0 ± 2.3

0.0469

ARAÚJO et al. [30]

[24]

24.00 ± 5.99

27.85 ± 2.45

0.005

Ranasinghe et al. [25]

IIEF (total)

51.36 (22.17)

48.17 (25.34)

0.712

IIEF: orgasm function

9.14 ± 1.27

9.38 ± 0.97

0.234

Mora et al. [26]

IIEF: erectile function

21.95 ± 8.03

25.74 ± 6.63

0.002

IIEF: sexual desire

7.66 ± 2.03

8.61 ± 1.32

0.061

IIEF: orgasm function

8.08 ± 2.30

8.15 ± 2.54

0.843

IIEF: sexual relations

10.09 ± 2.58

11.80 ± 2.20

0.005

IIEF: sexual desire

7.54 ± 1.79

8.15 ± 1.33

0.013

IIEF: overall satisfaction

7.09 ± 1.48

8.09 ± 1.13

0.031

IIEF: intercourse satisfaction

9.67 ± 4.19

10.67 ± 3.62

0.083

Dallal et al. [31]

BSFI: sex drive

3.9 ± 0.3

5.3 ± 0.3

<0.001

IIEF: overall satisfaction

7.62 ± 2.40

8.49 ± 2.15

0.047

BSFI: erection

6.4 ± 0.5

8.9 ± 0.5

<0.001

IIEF (total)

54.85 ± 16.59

61.21 ± 14.10

0.006

BSFI: ejaculation

4.9 ± 0.4

6.3 ± 0.4

<0.001

Li et al. [27]

IIEF-5

17.3 ± 5.5

23.8 ± 6.1

0.004

BSFI: problem assessment

7.4 ± 0.5

9.6 ± 0.5

<0.001

Groutz et al. [28]

IIEF: erectile function

22.7 ± 7.2

26.1 ± 6.5

0.02

BSFI: sexual satisfaction

1.6 ± 0.2

2.3 ± 0.2

O.002

IIEF: orgasm function

8.5 ± 2.8

9.2 ± 1.9

NS

Goitein et al. [32]

BSFI: desire

6.1 ± 1.6

7.8 ± 2.7

0.018

IIEF: sexual desire

7.8 ± 2.1

8.4 ± 1.5

NS

BSFI: erection

4.5 ± 0.8

12 ± 3.6

0.043

IIEF: intercourse satisfaction

9.5 ± 4.2

11.5 ± 3

0.01

BSFI: ejaculation

9 ± 1.3

8.3 ± 2.6

0.315

IIEF: overall satisfaction

7.9 ± 2.5

8.9 ± 1.3

0.02

BSFI: problem assessment

11.3 ± 3.7

11.8 ± 4

0.042

Efthymious et al. [14]

IIEF: erectile function

18.63 ± 9.63

24.85 ± 8.17

0.002

BSFI: sexual satisfaction

2.8 ± 0.8

4.1 ± 1.1

0.0006

IIEF: orgasm function

8.33 ± 2.64

8.59 ± 2.90

0.727

BSFI (total)

40.2 ± 9.2

43.9 ± 12

0.064

IIEF: sexual desire

6.29 ± 2.27

8.18 ± 1.92

0.001

IIEF: contact satisfaction

5.15 ± 5.26

11.07 ± 4.51

<0.001

IIEF: total satisfaction

5.29 ± 2.91

8.59 ± 1.32

<0.001