Table 3.

Papers that compared different analgesic methods

Authors	Newborns (n)	Surgical technique	Analgesia
Banieghbal et al. [18]	583	Gomco	RB/ RB+milk*
Lehr et al. [21]	53	Gomco	DPNB (n=18) /EMLA (n=17) /lidocaine (n=18)
Lehr et al. [19]	44	Gomco	DPNB (n=17) /EMLA (n=13) /lidocaine (n=14)
South et al. [22]	44	Gomco	DPNB + Tylenol (n=22) /DPNB+Tylenol+non-nutritive sucking (n=22)
Malnory et al. [24]	53	Gomco	Acetaminophen (n=26) vs placebo (n=27)
Macke et al. [27]	60	Gomco	Acetaminophen (n=29) vs placebo (n=31)
Kass et al. [29]	71	Gomco	DPNB (n=24) /dextrose solution (n=23)
O’Sullivan et al. [17]	66	unknown	DPNB/fentanyl*
Garry et al. [20]	18	unknown	DPNB (n=6) /EMLA (n=6)/ no analgesia (n=6)
Razmus et al. [23]	132	unknown	DPNB (n=7) /DPNB+sucrose solution (n=12) / DPNB+sucrose solution+EMLA (n=3) / EMLA(n=6) /EMLA+sucrose solution (n=8) / RB (n=15) / RB+sucrose solution (n=44) / sucrose solution (n=22)/ no analgesia (n=11)
Joyce et al. [28]	23	unknown	EMLA (n=11) / EMLA+music (n=12)

In bold, the most effective analgesic method. In brackets, the number of babies in each study-group.

*No data was available regarding the number of babies in each study-group.

Abbreviations: RB Ring block, DPNB Dorsal penile nerve block.