Prevalence and risk factors of posterior vitreous detachment in a Chinese adult population: the Handan eye study

BMC Ophthalmology

Table 2 Prevalence of posterior vitreous detachment by refractive error and age in the Handan eye study

Age group	SE > -1D		SE ≥ -6D and ≤ -1D		SE < -6D		P for trend (SE^b)
	N	% (95% CI^a)	N	% (95% CI^a)	N	% (95% CI^a)	P for trend (SE^b)
30~39	764	0.13 (0,0.39)	234	0.43 (0,1.27)	11	9.09 (0,26.08)	0.005
40~49	1046	0.19 (0,0.45)	134	0.75 (0,2.21)	13	0	0.352
50~59	1998	1.4 (0.88,1.92)	191	1.05 (0,2.5)	39	5.13 (0,12.05)	0.311
60~69	850	6.35 (4.71,7.99)	109	5.5 (1.22,9.78)	25	8 (0,18.63)	0.996
70+	298	15.44 (11.34,19.54)	131	6.11 (2.01,10.21)	18	11.11 (0,25.63)	0.023
total	4956	2.64 (2.2,3.09)	799	2.25 (1.22,3.28)	106	6.6 (1.88,11.33)	0.329
P for trend (age)	<0.001		<0.001		0.45

ISSN: 1471-2415