Table 2.

Demographics and clinical variables of the propensity score matched cohort (N = 458) stratified by perioperative gabapentin administration.

	Gabapentin N = 229	No Gabapentin N = 229	P
Age at surgery, years (mean, SDa)	10.6 (4.0)	10.4 (3.9)	0.750
Female sex	90 (39.3)	92 (40.2)	0.849
Race			0.449
Unknown	28 (12.2)	18 (7.9)
White	134 (58.5)	150 (65.5)
Black	53 (23.1)	48 (21.0)
Asian	11 (4.8)	12 (5.2)
American Indian or Alaskan Native	<10 (<4.2)	<10 (<4.2)
Native Hawaiian or Pacific Islander	<10 (<4.2)	<10 (<4.2)
Other	<10 (<4.2)	<10 (<4.2)
Ethnicity			0.114
Hispanic or Latino	69 (30.1)	54 (23.6)
Not Hispanic or Latino	160 (69.9)	175 (76.4)
Unknown	<10 (<4.2)	<10 (<4.2)
Insurance			0.139
Private	87 (38.0)	108 (47.2)
Public	125 (54.6)	107 (46.7)
Other	17 (7.4)	14 (6.1)
Hospital Region			0.354
Midwest	<10 (<4.2)	<10 (<4.2)
Northeast	<10 (<4.2)	11 (4.7)
South	219 (95.6)	217 (94.8)
West	<10 (<4.2)	<10 (<4.2)
Open appendectomy	16 (7.0)	17 (7.4)	0.857
Postoperative Outcomes
Analgesic Use
Opioidb	118 (51.5)	157 (68.6)	<0.001
Ibuprofen	64 (28.0)	70 (30.6)	0.534
Ketorolac	200 (87.3)	202 (88.2)	0.775
Acetaminophen	197 (86.0)	213 (93.0)	0.015
IV acetaminophen	11 (4.8)	14 (6.1)	0.537
Antibiotic Utilization
Any perioperative antibiotic useb	229 (100)	229 (100)	–
Postoperative Antibiotic Use	213 (93.0)	217 (94.8)	0.435
Cumulative unique days of postop antibiotic use (Median, IQRc)	4 (2.0–5.0)	5 (3.0–6.0)	0.923
Postoperative LOS (in days)b	4.6 (3.3)a	5.3 (3.3)a	<0.001
Postoperative Opioid Use (in days)b	2.3 (2.3)a	3.0 (2.5)a	<0.001

LOS, Length of stay.

^aMean days (Standard Deviation).

^bOutcome variables not included in propensity score matching.

^cMedian days (Interquartile Range).