Table 6.

Interobserver analysis

		Interobserver analysis at presurgical stage								Interobserver analysis at postsurgical stage
		obs 1 vs obs 2 at the first measurement				obs 1 vs obs 2 at the second measurement				obs 1 vs obs 2 at the first measurement				obs 1 vs obs 2 at the second measurement
		Independent samples t-test	95% CI		Dahlberg’s %	Independent samples t-test	95% CI		Dahlberg’s %	Independent samples t-test	95% CI		Dahlberg’s %	Independent samples t-test	95% CI		Dahlberg’s %
		p-value	Lower	Upper		p-value	Lower	Upper		p-value	Lower	Upper		p-value	Lower	Upper
Retropalatal	mm3	0.8	−2843	2349	6.1	1.0	−2366	2444	2.2	0.9	−3675	3375	3.6	1.0	−3376	3553	1.6
U-retropalatal	mm3	0.9	−1809	1614	8.4	0.8	−1432	1898	6.6	0.9	−1911	2079	6.3	0.8	−1649	2137	6.5
L-retropalatal	mm3	0.8	−1686	1371	7.1	0.7	−1694	1204	5.0	0.8	−2403	1829	8.0	0.8	−2415	1997	4.0
Oropharynx 90	mm3	0.8	−2972	2200	10.2	0.9	−2574	2281	8.4	1.0	−4031	4225	2.8	1.0	−3898	4033	3.9
Oropharynx 100	mm3	0.9	−3442	3040	4.9	1.0	−2977	3032	3.6	1.0	−4895	5055	2.6	1.0	−4766	4710	2.8
E to airway superior border	mm	0.7	−9.2	6.1	2.5	0.7	−8.8	6.3	2.1	0.8	−7.6	5.7	2.0	0.8	−7.5	5.6	1.9
E to Frankfurt	mm	0.7	−10.0	7.2	1.5	0.7	−10.1	7.3	1.6	0.8	−9.4	7.0	1.3	0.7	−9.9	6.5	1.7
E to SN	mm	0.8	−11.5	9.1	1.5	0.9	−10.5	9.6	1.6	0.8	−10.5	8.1	1.3	0.8	−10.0	8.1	1.5
H to Frankfurt	mm	0.9	−10.6	9.1	1.0	0.8	−11.1	8.7	1.5	0.7	−11.0	8.0	1.5	0.8	−10.8	7.9	1.4
H to SN	mm	1.0	−11.6	11.1	1.2	1.0	−11.5	10.9	1.4	0.9	−11.9	9.9	1.0	0.9	−10.8	10.1	0.7
Sella-Basion	mm	1.0	−4.6	4.4	2.1	1.0	−4.4	4.6	2.5	0.9	−4.8	4.3	1.2	0.8	−3.9	4.6	1.7
Surface area 1	mm2	0.9	−138.2	125.2	5.1	0.8	−117.2	148.0	3.2	0.8	−159.8	198.1	4.9	0.9	−160.1	186.4	4.5
Surface area 2	mm2	1.0	−85.6	88.4	4.6	0.9	−83.8	93.8	3.2	1.0	−133.3	136.2	1.9	1.0	−138.6	135.4	2.5
Surface area 3	mm2	1.0	−127.6	130.4	4.0	1.0	−125.4	124.4	2.7	1.0	−148.0	142.1	3.2	1.0	−144.1	146.1	6.8
Surface area 4	mm2	1.0	−133.9	138.2	9.4	0.9	−135.1	125.0	6.0	1.0	−116.7	118.8	6.6	0.9	−114.5	96.5	12.2

obs1, observer 1; obs 2, observer 2.