Table 3.

Comparison of arch dimensions of adenoid and control subjects by age groups

	Adenoid group (n=90) mean±sd (cm)	Control group (n=90) mean±sd (cm)	t-test	p
3–5years	(n=41)	(n=22)
Maxillary arch
Total arch length	5.14±0.56	6.08±0.56	0.93	0.356
Inter-canine width	2.88±0.52	3.05±0.27	1.72	0.089
Inter-premolar width	3.63±0.27	3.65±0.40	−0.23	0.815
Inter-molar width	4.19±0.29	4.10±0.40	1.02	0.313
Mandibular arch
Total arch length	5.23±0.42	5.33±0.32	−0.43	0.671
Inter-canine width	2.50±0.28	2.55±0.45	−0.61	0.547
Inter-premolar width	3.19±0.27	3.20±0.29	−0.07	0.943
Inter-molar width	3.67±0.28	3.78±0.35	1.28	0.204
6–8 years	(n=34)	(n=39)
Maxillary arch
Total arch length	6.94±0.59	7.00±0.65	0.51	0.610
Inter-canine width	3.32±0.41	3.38±0.34	−0.81	0.418
Inter-premolar width	3.81±0.33	3.82±0.23	−0.14	0.890
Inter-molar width	4.49±0.32	4.58±0.39	1.04	0.300
Mandibular arch
Total arch length	6.17±0.56	6.29±0.40	−1.14	0.259
Inter-canine width	2.74±0.28	2.90±0.34	−1.88	0.064
Inter-premolar width	3.29±0.32	3.37±0.27	−1.09	0.278
Inter-molar width	4.08±0.49	4.18±0.49	0.83	0.410
9–12 years	(n=15)	(n=29)
Maxillary arch
Total arch length	7.32±0.53	7.25±0.40	0.47	0.638
Inter-canine width	3.49±0.38	3.63±0.45	1.09	0.283
Inter-premolar width	3.93±0.33	4.07±0.37	1.19	0.241
Inter-molar width	4.74±0.32	4.79±0.29	0.53	0.600
Mandibular arch
Total arch length	6.58±0.19	6.68±0.28	−1.18	0.244
Inter-canine width	2.85±0.32	2.86±0.26	−0.02	0.964
Inter-premolar width	3.57±0.49	3.57±0.28	−0.02	0.984
Inter-molar width	4.32±0.28	4.36±0.27	0.04	0.688

^*Statistically significant