. 2014 Nov-Dec;19(6):46–53. doi: 10.1590/2176-9451.19.6.046-053.oar

Table 3. Comparison between the studied sella, articular and gonial angles and the Björk and Jabarak standard by skeletal class and sex.

Skeletal class	Sex	Angle	SD	Standard	SD	p	Mean difference	95% confidence interval
Skeletal class	Sex	Angle	SD	Standard	SD	p	Mean difference	Lower	Upper
Sella angle
Class I	Male	118.50	4.50	123	5	0.041	-4.42	-8.9	-0.26
Class I	Female	125.50	6.07	123	5	0.282	2.50	-2.58	7.58
Class II	Male	123.10	11.02	123	5	0.974	0.14	-10.05	10.34
Class II	Female	122.37	2.87	123	5	0.558	-0.62	-3.03	1.78
Class III	Male	121.80	4.54	123	5	0.507	-1.12	-4.93	2.68
Class III	Female	121.30	7.53	123	5	0.561	-1.62	-7.93	4.68
Articular angle
Class I	Male	151.40	7.63	143	6	0.027	8.42	1.37	15.49
Class I	Female	145.50	9.30	143	6	0.472	2.50	-5.28	10.28
Class II	Male	147.10	9.82	143	6	0.307	4.14	-4.94	13.23
Class II	Female	151.00	8.28	143	6	0.029	8.00	1.08	14.92
Class III	Male	137.80	6.89	143	6	0.074	-5.12	-10.89	0.64
Class III	Female	146.70	4.62	143	6	0.055	3.75	-0.11	7.61
Gonial angle
Class I	Male	122.80	3.48	130	7	0.002	-7.14	-10.37	-3.92
Class I	Female	122.80	4.73	130	7	0.004	-7.12	-11.08	-3.17
Class II	Male	125.80	7.69	130	7	0.204	-4.14	-11.26	2.97
Class II	Female	126.00	4.98	130	7	0.058	-4.00	-8.17	0.17
Class III	Male	138.80	7.51	130	7	0.012	8.87	2.60	15.15
Class III	Female	126.70	5.39	130	7	0.132	-3.25	-7.76	1.26

Independent t-test.