Table 5

Complication rates in uncomplicated, single-level PLF patients after NSAIDs use.

Complication	NSAIDs <72 h
Complication	N Control	N Intervention	OR/IRR	CI Lower	CI Upper	P
Readmission	27,101	542	0.836	0.506	1.380	0.483
Pseudoarthrosis and hardware failure	27,101	542	1.068	0.882	1.294	0.500
Wound complications	27,101	542	0.839	0.599	1.175	0.308
Length of stay	27,101	542	0.757	0.715	0.801	<0.001

Complication	NSAIDs 72 h to 90 d
Complication	N Control	N Intervention	OR/IRR	CI Lower	CI Upper	P
Readmission	27,101	5823	1.029	0.954	1.109	0.462
Pseudoarthrosis and hardware failure	27,101	5823	1.048	1.015	1.082	0.004
Wound complications	27,101	5823	1.150	1.097	1.206	<0.001

Complication	NSAIDs 90 d to 1 y
Complication	N Control	N Intervention	OR/IRR	CI Lower	CI Upper	P
Readmission	27,101	7725	1.032	0.987	1.078	0.167
Pseudoarthrosis and hardware failure	27,101	7725	1.038	1.019	1.058	<0.001
Wound complications	27,101	7725	1.020	0.989	1.052	0.202

Abbreviations: IRR, incidence rate ratio; NSAIDs, nonsteroidal anti-inflammatory drugs; PLF, posterior lumbar fusion.
Note: Bold values indicate a significance at a Bonferroni-adjusted P value of <0.01.