The effects of the administration sequence and the type of hypnotics on the development of remifentanil-induced chest wall rigidity: a randomized controlled trial

Table 4 Possible risk factors for remifentanil-induced chest wall rigidity based on logistic regression analysis

	Univariate analysis
	Crude OR [95% CI]	P value
\(\ge\) 75 years	1.85 [0.77–4.45]	0.170
Female sex	1.10 [0.52–2.35]	0.807
Remifentanil-hypnotic order	4.42 [1.99–9.81]	< 0.001^*
Propofol usage	0.751 [0.36–1.58]	0.453
BMI (kg/m²)	1.06 [0.95–1.19]	0.315
Percent body fat (%)	1.00 [0.96–1.05]	0.848
Skeletal muscle index (kg/m²)	1.12 [0.84–1.50]	0.437

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