Table 2.

Associations (univariate analysis) between the reduction or increase of the ophthalmoscopical optic disc size in the Beijing eye Study 2001–2011.

Parameter	Odds ratio	95% confidence interval	p value	Odds ratio	95% confidence interval	p value
Reduction in optic disc size				Increase in optic disc size
Axial length	1.19	0.95, 1.50	0.13	1.57	1.15, 2.14	0.004
Highly myopic group versus non-highly myopic group	5.74	2.36, 14.0	<0.001	6.73	2.21, 20.5	0.001
Increase in the stage of myopic maculopathy	0.58	0.21, 1.58	0.29	1.49	0.88, 2.52	0.14
Elongation of the disc-fovea distance	4.73	2.15, 10.4	<0.001	4.92	1.94, 12.5	0.001
Parapapillary gamma zone presence in the year 2001	5.32	2.09, 13.6	<0.001	25.3	3.35, 191.9	0.002
Parapapillary gamma zone presence in the year 2011	34.0	4.53, 254.8	<0.001	20.4	2.70, 154.7	0.003
Gamma zone enlargement in one direction without circular gamma zone enlargement	24.5	9.2, 65.3	<0.001	1.44	0.61, 3.43	0.40
Circular enlargement of gamma zone	3.4;95	0.96, 12.1	0.06	4.46	1.79, 11.1	0.001
Gamma zone enlargement, any	51.2	6.82, 384	<0.001	29.8	3.93, 226	<0.001
Presence of delta zone in the year 2001	0.88	0.35, 2.20	0.78	5.48	2.25, 13.3	<0.001
Presence of delta zone in the year 2011	1.02	0.44, 2.39	0.96	6.16	2.55, 14.9	<0.001
Parapapillary delta zone enlargement	0.95	0.40, 2.29	0.91	7.10	2.91, 17.3	<0.001
Retinal vessel trunk shift in optic disc	17.6	6.90, 44.9	<0.001	16.1	5.54, 46.5	<0.001
Straightening of temporal retinal vessels	3.78	1.76, 8.01	0.001	4.88	1.98, 12.0	0.001
Decrease in angle kappa	4.03	1.86, 8.74	<0.01	6.22	2.25, 16.4	<0.001
Presence of macular Bruch’s membrane defects in the year 2001	1.89	0.17, 21.4	0.61	2.94	0.26, 33.7	0.39
Presence of macular Bruch’s membrane defects in the year 2011	0.82	0.17, 3.97	0.80	5.68	1.59, 20.3	0.007
Enlargement of macular BM defects	1.01	1.004, 1.021	0.003	1.00	0.99, 1.01	0.94