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Table 1 Prevalence of posterior vitreous detachment in the Handan Eye Study

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

Age group

Males

Females

Total

 

N

% (95% CIa)

N

% (95% CIa)

N

% (95% CIa)

30~39

426

0.47 (0,1.12)

592

0.17 (0,0.5)

1018

0.29 (0,0.62)

40~49

538

0.19 (0,0.56)

661

0.3 (0,0.72)

1199

0.25 (0,0.53)

50~59

998

0.8 (0.25,1.35)

1233

2.03 (1.24,2.82)

2231

1.48 (0.98,1.98)

60~69

488

4.92 (3,6.84)

500

7.8 (5.45,10.15)

988

6.38 (4.86,7.9)

70+

210

8.57 (4.78,12.36)

244

16.39 (11.75,21.03)

454

12.78 (9.71,15.85)

total

2660

1.99 (1.46,2.52)

3230

3.31 (2.7,3.93)

5890

2.72 (2.3,3.13)

P for trends

<0.001

<0.001

<0.001

  1. a: confidence interval.