Effect of general anesthesia with thoracic paravertebral block on postoperative delirium in elderly patients undergoing thoracoscopic lobectomy: a randomized-controlled trial

Table 1 Demographic Characteristics of the Participating Patients

Variables	PIA (n = 168)	PBA (n = 170)	P-value
Age (year)	73.5 ± 7.1	76.2 ± 6.3	0.471
Sex (M/F)	80/88	83/87	0.229
BMI (kg/m²)	24.4 ± 3.6	24.9 ± 4.0	0.337
ASA classification			0.227
II	137	146
III	31	34
Hypertension	77 (45.8%)	81 (47.6%)	0.802
Diabetes mellitus	39 (23.2)	36 (21.2)	0.830
COPD	17 (10.1%)	20 (11.8%)	0.567
Smoking	82 (48.8%)	96 (56.4%)	0.397
MMSE	26 [24–28]	26 [24–28]	0.920
TNM classification			0.619
I	72	76
II	62	57
III	34	37

Values are expressed as mean ± SD, median [IQR] or number (percentage) when appropriate
Abbreviations: BMI Body mass index, ASA American Society of Anesthesiologists, COPD Chronic Obstructive Pulmonary Disease, MMSE Mini-Mental State Examination, TNM Tumor Node Metastasis

ISSN: 1471-2253