Table 1.

Comparison of Demographic Characteristics, Pain Scores, and IV Morphine Equivalents Between Non‐Acetaminophen and Acetaminophen Groups.

Characteristic		Acetaminophen	Non‐Acetaminophen	P‐value
		N = 48	N = 51
Age		63.7 (10.7)	59.9 (8.3)	.055
Male		34 (71%)	38 (75%)	.681
Race	African American	20 (42%)	21 (41%)	.380
	Caucasian	28 (58%)	28 (55%)
	Other	0 (0%)	2 (4%)
LOS in Hours		188.4 (110.6)	254.1 (181.4)	.033
LOS in Days		7.8 (4.6)	10.6 (7.6)	.033
PCA Duration		55.7 (28.7)	73.6 (57)	.054
PCA Type	Morphine	31 (65%)	27 (53%)	.009
	Fentanyl	0 (0%)	9 (18%)
	Hydromorphone	17 (35%)	15 (29%)
PCA Attempts	1st 8 hours	44.3 (68.5)	33.9 (45.8)	.421
	2nd 8 hours	33.1 (47)	50.6 (83)	.231
	3nd 8 hours	41.0 (63.5)	37.0 (53)	.762
Average Pain Score	1st 8 hours	0.8 (1.2)	1.0 (1.3)	.408
	2nd 8 hours	1.3 (2)	0.9 (1.4)	.178
	3nd 8 hours	0.9 (1.5)	0.9 (1.5)	.837
Highest Pain Score	1st 8 hours	2.2 (3.1)	2.8 (3)	.387
	2nd 8 hours	3.0 (3.6)	2.1 (3.1)	.204
	3nd 8 hours	2.2 (3)	1.9 (2.7)	.673
PCA IV ME	1st 8 hours	13.0 (13.1)	18.5 (19.2)	.099
	2nd 8 hours	15.1 (13.9)	18.9 (22.2)	.314
	3nd 8 hours	14.9 (14.2)	17.6 (21.6)	.473
Total IV ME	1st 8 hours	13.5 (13.3)	22.5 (21.5)	.014
	2nd 8 hours	15.5 (14.2)	21.7 (23)	.108
	3nd 8 hours	15.9 (15.2)	20.5 (22.5)	.237
Total IV ME in 24 h		44.8 (38.6)	64.7 (60.2)	.055

Continuous variables are reported using means/standard deviations. Categorical data is reported using percentiles. Statistical significance (bolded) was set at the 95% level of confidence (α = 0.05).

IV ME = intravenous morphine equivalents; LOS = length of stay; PCA = patient controlled analgesia.