Effect of driving pressure on early postoperative lung gas distribution in supratentorial craniotomy: a randomized controlled trial

Table 1 Demographics and surgery characteristics

Characteristics	control group (n = 26)	titration group (n = 25)	SMD [95%CI]
Age; yr	48 (8)	47 (9)	0.11 [-0.45,0.67]
Sex; male/female	14/12	12/13	0.12 [-0.43,0.67]
BMI; kg·m^− 2	25.1 (2.9)	24.6 (3.5)	0.13 [-0.43,0.70]
ASA, II, n (%)	0(0)	0(0)
III, n (%)	26 (100)	25 (100)
Hemoglobin, g·dl^− 1	13.3(1.6)	13.2 (1.4)	0.12 [-0.44,0.68]
Smoking, n (%)	8 (31)	9 (36)	0.11 [-0.44,0.66]
Comorbidities, n (%)			0.51 [-0.05,1.06]
Hypertension	7 (27)	5 (20)
Diabetes	3 (12)	2 (8)
Heart disease	2 (8)	0 (0)
Position, n (%)			0.13 [-0.42,0.68]
Supine	23 (88)	21 (84)
Lateral	3 (12)	4 (16)
Type of tumor, n (%)			0.46 [-0.10,1.02]
Glioma	13 (50)	12 (48)
Meningioma	7 (27)	10 (40)
Craniopharyngioma	1 (4)	1 (4)
Pituitary tumor	1 (4)	0 (0)
Metastatic tumor	1 (4)	1 (4)
Others	3 (11)	1 (4)

Data are presented as mean(standard deviation) or a frequency with proportion(%). The standardized mean difference(SMD) with 95% confidence interval (95% CI) is calculated for the data. BMI body mass index, ASA American Society of Anesthesiologists

ISSN: 1471-2253