Table 1 Characteristics of included studies

Gaillard [40]

R

16

1

9

M

7 yrs

Kalani [8]

R

22

1

9

M

1 mo

Ardehali [5]

R

47

1

7

M

2.5 yrs

Ferreira [39]

P

9

1

9

M

1 yr

Handa [22]

C

1

1

8

M

6 mo

Baptista [38]

C

1

1

8

F

6 mo

Salcone [37]

C

1

1

9

M

6 mo

Gupta [23]

CS

8

2

1: 4

2: 6

1: M

2: M

1: 1.5 yrs

2: 1 yrs

Garofalo [2]

R

12

2

1: 9

2: 9

1: M

2: M

1: 15 yrs

2: 8 yrs

Bakshi and Bhattacharjee [47]

C

1

1

9

M

5 mo

Moorthy [21]

R

13

1

7

M

3 yrs

Yi [6]

R

51

1

8

M

1 yrs

Cruz [4]

R

19

1

9

M

–

Szyfter [25]

R

15

1

9

M

–

Punj [36]

R

56

1

8

M

–

Lv [35]

R

22

1

9

F

–

Lutz [34]

R

15

1

9

M

–

Yamada [33]

CS

11

1

8

M

–

Cansiz [32]

CS

22

1

9

M

–

Yamada [33]

C

1

1

8

M

1.25 yrs

El-Banhawy [26]

CS

20

1

8

M

6 yrs

Fonseca [31]

CS

15

1

8

M

3 yrs

Browne [29]

CS

5

2

1. 8

2. 9

1. M

2. M

1. 4 yrs

2. 11 yrs

Lee [27]

R

27

2

1. 8

2. 9

1. M

2. M

–

Dubey [28]

CS

16

1

7

M

–

Tseng [30]

C

1

1

9

M

6 mo

Gruber [44]

CS

2

2

8

7

M

F

2 yrs

3 yrs

Pletcher [45]

CS

23

1

8

M

–

Donald [46]

CS

5

1

9

M

1 mo

Average (SD)

8.15 (1.08)

32.0 mo. (41.42)