The effect of body mass index on thoracic paravertebral block analgesia after video-assisted thoracoscopic surgery; a prospective interventional study

Table 1 Demographic and surgical characteristics of the patients

		Group I (n:25)	Group II (n:25)	Group III (n:25)	p
Age (years)*		51.84 ± 18.39	54.4 ± 12.06	57.08 ± 12.41	0.447
Gender^#	Female	7 (28.0%)	9 (36.0%)	12 (48.0%)	0.380
Gender^#	Male	18 (72.0%)	16 (64.0%)	13 (52.0%)	0.380
BMI, kg/m^2§		21.2 (19.8–23.8)	26.2 (25.5–28.6)	31.7 (30.9–34.3)	< 0.001^a,b,c
Diagnosis^#	Pulmonary Nodule	20 (80.0%)	25 (100.0%)	24 (96.0%)	0.042^a,b
Diagnosis^#	Pneumothorax	5 (20.0%)	-	1 (4.0%)	0.042^a,b
Surgery^#	Wedge Resection	16 (64.0%)	19 (76.0%)	15 (60.0%)	0.646
	Segmenthectomy	2 (8.0%)	-	2 (8.0%)
	Lobectomy	7 (28.0%)	6 (24.0%)	8 (32.0%)
ASA^#	I	1 (4.0%)	2 (8.0%)	-	0.574
	II	9 (36.0%)	10 (40.0%)	13 (52.0%)
	III	15 (60.0%)	13 (52.0%)	12 (48.0%)
Duration (min)^§		150 (120–210)	150 (120–200)	180 (150–240)	0.626

Continuous variables are expressed as either the mean ± standard deviation (SD) or median (Q1-Q3). Categorical variables are expressed as numbers and frequency (percentage). p < 0.05 statistically significant. The Conover-Iman Test was performed for binary comparisons among the groups
*One-Way ANOVA test; §The Kruskal-Wallis Test; #χ2 test
Significant differences were found between;a: I vs. II;b: I vs. III;c: II vs. III.
BMI: Body Mass Index; ASA: American Society of Anesthesiologists

ISSN: 1471-2253