. 2025 Jan 4;15:830. doi: 10.1038/s41598-025-85573-3

Table 9.

Association between TDIs and patients’ characteristics utilizing multi-regression analysis. All explanatory variables were studied together. Values are number (95% CI).

		OR	p-value
Occlusal stage	Primary dentition	0.448 (0.01–20.92)	0.682
Occlusal stage	Mixed dentition	1^**
Age (years)	4–6	0.060 (0.001–2.53)	0.140
	7–9	0.015 (0.001–0.42)	0.014 ^*
	10–13	1^**
The resident’s assessment of the difficulty of intubation	Difficult	1^**
The resident’s assessment of the difficulty of intubation	Not difficult	0.078 (0.01–1.14)	0.063
Occlusal classification of intermolar relationship	Class I	0.590 (0.01–32.22)	0.796
	Class II	5.730 (0.06–491.22)	0.442
	Class III	57.830 (0.35–9293.73)	0.119
	Straight line	1.070 (0.02–57.36)	0.972
	Mesial step	2.930 (0.17–49.45)	0.454
	Distal step	1^**
Mallampati score	I	2.480 (0.01–32.22)	0.559
	II	1.340 (0.11–17.34)	0.818
	III	10.640 (1.06–106.97)	0.044 ^*
	IV	1^**
Gingivitis	Yes	4.600 (0.78–26.96)	0.090
Gingivitis	No	1^**
Number of attempts		1.620 (0.84–3.13)	0.149
Inter-incisor distance (cm)		0.282 (0.02–3.12)	0.302
The distance between the mental and thyroid cartilage (cm)		0.872 (0.41–1.86)	0.724

TDIs, traumatic dental injuries; CI, confidence intervals, OR, odds ratios; ^**, the reference; ^*, significant difference p-value < 0.05, p-values written in bold are statistically significant (p < 0.05).