Table 6.

Association between frequency of different non-nutritive sucking habits and primary dental relationships in vertical dimension (n = 851)

	Anterior openbite			Anterior overbite
	p-value	Anterior openbite vs non-anterior openbite		p-value	Overbite ≥ ½ vs overbite < ½
		OR	95% CI		OR	95% CI
Frequency of pacifier use	0.000*			0.004*
Daily		10.149	3.798–27.122		0.555	0.373–0.825
Non-daily		1	–		1	–
Frequency of thumb/digit sucking	0.046*			0.128
Daily		3.440	1.020–11.597		0.653	0.377–1.130
Non-daily		1	–		1	–

OR odds ratio, CI confidence interval

^a Adjusted for background information (age and gender) and duration of pure breastfeeding

* p < 0.05

Boldface data are variables with p < 0.05 or OR (95%CI) < 1