Table 1.

Demographic data (n=21)

	Group I (control)	Group II (ESP)	Group III (OSTAP)	P#
Age (years)	38.26±10.19	36.67±9.34	37.5±7.54	0.76
Sex (female/male)*	14/7	15/6	14/7	0.82
ASA I/II*	11/10	12/9	10/11	0.93
BMI (kg/m2)	30.04±4.22	29.52±4.04	28.91±6.34	0.61
Duration of surgery (min)	61.00±6.07	63.42±8.64	65.33±9.34	0.41

Values are given as mean±SD. *Analysis done by using Chi-square test, ^#P<0.05 is significant. SD=Standard deviation, ESP=Erector spinae plane, OSTAP=Oblique subcostal transversus abdominis plane, ASA=American Society of Anesthesiologists, BMI=Body mass index