Table 3. Jadad quality scores of randomized controlled trials included in meta-analysis.

Group	Randomization	Blind	withdrawals and dropouts	Jadad score
Sudhindran[18]	computer generated number	double	clear reported	5
Wehrmann[19]	computer generated number	double	clear reported	5
Ghori A[20]	not clear randomized	double	clear reported	4
Moretó M[21]	not clear randomized	double	clear reported	4
Talwar A[22]	computer generated number	double	clear reported	5
Kaffes AJ[23]	computer generated randomization protocol	double	clear reported	5
Beauchant [24]	not clear randomized	double	clear reported	4
Nøjgaard C[25]	computer-generated randomization code	double	clear reported	5
Hao JY[26]	not clear randomized	double	clear reported	4
Nashaat E[12]	not clear randomized	not clear	clear reported	3
Bhatia V[13]	computer-generated random numbers	double	clear reported	5
Chen XW[14]	randomize table generated random numbers	single	clear reported	5