A small dose of remifentanil pretreatment suppresses sufentanil-induced cough during general anesthesia induction: a randomized, double-blind, placebo-controlled trial

Table 1 Demographic data

Group	Gender (M/F)	Age (yr)	ASA class (I/II)	BMI (kg/m²)
Group C(n = 42)	16/26	43.6 ± 11.4	16/26	22.5 ± 1.9
Group R(n = 42)	18/24	45.6 ± 11.0	11/31	22.9 ± 2.9
P value	0.657	0.414	0.243	0.449

Values are expressed as the mean ± standard deviation or as number of cases.
No statistical differences were observed between groups in gender, age, ASA class or BMI.
R = remifentanil, C = control; M = male, F = female; ASA = American Society of Anesthesiologists physical status; BMI = body mass index.

ISSN: 1471-2253