A retrospective study to identify risk factors for somnolence and dizziness in patients treated with pregabalin

Table 4 Univariate analysis

Factor		Adverse event^a		Odds ratio	95 % CI	P-value
Factor		(+)	(−)	Odds ratio	95 % CI	P-value
Age	≧65	26	55	2.948	1.474-5.892	0.002
	<65	17	106
Gender	male	31	92	1.937	0.928-4.044	0.078
	female	12	69
Regular strong opioid	yes	18	18	5.720	2.624-12.470	<0.001
	no	25	143
CLcr	<60 mL/min	13	25	2.357	1.083-5.133	0.031
	≧60 mL/min	30	136
Initial dose of pregabalin	150 mg/day	30	94	1.645	0.799-3.387	0.177
	<150 mg/day	13	67
Pregabalin dose group	high	7	9	3.284	1.146-9.407	0.027
	regular/low	36	152
Hypnotics	yes	8	20	1.611	0.655-3.962	0.299
	no	35	141

ISSN: 2055-0294