Table 2. Comparison of the Studied Groups with Regard to Sedation, Pain During Injection, and Anxiety Scores ^a.

Variables	Pregabalin (n = 30)	Placebo (n = 28)	P-Value
Sedation score	3 ± 0.8 (2.71 - 3.29)	2 ± 0.65 (1.76 - 2.24)	< 0.05
Pain (VAS)	32 ± 15 (26.6 - 37.4)	44 ± 15 (38.4 - 49.6)	< 0.05
Anxiety score	3 ± 1.3 (2.54 - 3.46)	5 ± 1.6 (4.41 - 5.59)	< 0.001

^a Values are expressed as mean ± SD (95% CI).