Risk factors associated with intraoperative shivering during caesarean section: a prospective nested case-control study

Table 3 Multivariate logistic regression analyses on risk factors associated with shivering at different time points

Time points	Patients with shivering, N (%)	Risk factors	Odds ratio (95% CI)	P
Pre-operation	13 (6.1)	Labor analgesia	10.59 (3.22–34.83)	< 0.001
Post-anesthesia	45 (21.2)	VAS	3.86 (2.11–7.07)	< 0.001
Post-anesthesia		Ward^a vs. delivery room	3.17 (1.37–7.33)	0.007
Post-disinfection	63 (29.7)	Ward^a vs. delivery room	3.42 (1.45–8.09)	0.005
		Elective^a vs. emergency	2.44 (1.13–5.29)	0.023
		Anxiety	1.80 (1.02–3.18)	0.043
Post-delivery	56 (26.4)	Elective^a vs. emergency	4.05 (1.77–9.30)	0.001
Post-delivery		Ward^a vs. delivery room	3.36 (1.46–7.77)	0.005
Post-oxytocin	46 (21.7)	Elective^a vs. emergency	5.27 (1.86–14.96)	0.002
Post-oxytocin		Ward^a vs. delivery room	5.77 (2.36–14.07)	< 0.001
Additional oxytocin	33 (15.6)	VAS	2.19 (1.00–4.80)	0.049
Additional oxytocin		Elective^a vs. emergency	28.67 (3.50–234.67)	0.002
Pre-discharge from OR	32 (15.1)	Ward^a vs. delivery room	3.53 (1.55–8.02)	0.003

^acontrol; VAS Visual analog scale, OR Operating room, 95% CI 95% confidence interval

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