Table 5. Multivariate logistic regression analysis to identify factors associated with appropriate markings among the markings located in the dorsal and ventral segments.

Factors	Reference	OR	95% CI	P
Lateral position	Supine position	6.88	1.02–46.3	0.047
Late phase	Early phase	0.57	0.10–3.32	0.53

Late phase: from the median patient to the last patient; early phase: from the first patient to the median patient.