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Table 1 Demographic and clinical characteristics of patients

From: Visual outcomes and complications following one-way air-fluid exchange technique for vitreous hemorrhage post vitrectomy in proliferative diabetic retinopathy patients

Variables (mean ± SD,)

Total

Gender

 Male

27

 Female

20

Age, years

50.8 ± 12.0

Indications for primary PPV

 VH

44

 VH and TRD

3

Days of VH post PPV,

34.9 ± 42.7

Category of VH post PPV

 Early VH

33

 Delayed VH

13

 Severe persistent VH

1

Diagnosis

 T1DM

4

 T2DM

43

Lens status

 Pseudophakic

21

 Phakic

26

Times of Air-fluid exchange procedure

  = 1

42

  = 2

4

  = 3

1

Additional ocular treatment

 No treatment

5

 Only photocoagulation

41

 Laser plus Conbercept

1

Follow-up post last exchange, months

22.7 ± 13.6

  1. VH Vitreous hemorrhage; TRD Tractional retinal detachment; PPV Pars plana vitrectomy; DM Diabetes mellitus. Conbercept: an anti-VEGF drug for intraocular use in China