Table 2.

Characteristics of each study (Sex)

Author	Sex and number of patients
	Male	Female
Patel et al. [31]	14	38
Singhal et al. [32]	4	17
Mohammed & Gadgil [30]	9	12
*Latif et al. [34]	Unknown	Unknown
Fazal et al. [33]	3	23
Marudanayagam & Appan [35]	12	39
Challagundla et al. [36]	14	36
Total	56a	165a

^aLatif et al. [34] did not disclose their sex proportion and is therefore excluded from the total count.