Orthodontic Treatment Need and Complexity among Nigerian Adolescents in Rivers State, Nigeria

Table 2

Relationship between age, gender, and assessed orthodontic treatment need according to the Index of Complexity, Outcome, and Need.

Variable	ICON assessment of need (%)		𝜒^2	Odd ratio	95% CI		𝑃
	Need (𝑛=233)	No need (𝑛=379)			Lower	Upper
Age (years)
12	26 (28.0)	67 (72.0)	4.76	0.58	0.35	0.97	0.03*
13	22 (27.5)	58 (72.5)	4.36	0.58	0.33	1.00	0.04*
14	36 (38.7)	57 (61.3)	0.02	1.03	0.64	1.66	0.89
15	34 (45.3)	41 (54.7)	1.91	1.41	0.84	2.36	0.17
16	37 (37.4)	62 (62.6)	0.02	0.97	0.60	1.54	0.88
17	54 (50.0)	54 (50.0)	7.91	1.82	1.17	2.82	0.01*
18	24 (37.5)	40 (62.5)	0.01	0.97	0.55	1.71	0.92
Gender
Male	130 (43.5)	169 (56.5)	7.25	1.57	1.11	2.21	0.01*
Female	103 (32.9)	210 (67.1)	7.25	0.64	0.45	0.90	0.01*

*Significant.