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Table 5 Scheduled versus actual days elapsed between examinations for patients treated with laser who developed a retinal detachment

From: Outcome of retinopathy of prematurity patients following adoption of revised indications for treatment

  

Number of days scheduled between examinations

  

Actual days elapsed between examinations

  

p-value

  

N

Mean (range)

SD

N

Mean (range)

SD

 

Pre-ETROP

Examination numbers

       
 

E1–E2

5

15.4 (14–21)

3.13

5

14.2 (7–22)

5.31

0.99

 

E2–E3

5

10.2 (2–14)

5.5

3

16 (6–28)

 

0.99

 

E3–E4

3

5 (1–7)

3.46

2

7.5 (7–8)

 

0.99

 

E4–E5

2

0.5 (0–1)

0.71

0

--

--

--

Post-ETROP

E1–E2

7

9 (7–14)

3.42

7

8.57 (4–14)

4.08

0.72

 

E2–E3

7

5.43 (1–14)

4.83

4

7.25 (5–11)

2.63

0.25

 

E3–E4

3

7.33 (1–14)

6.51

2

11 (8–14)

4.24

0.99

 

E4–E5

2

7 (7-7)

0

2

7.5 (2–13)

7.78

0.99

  1. Pre- and Post-ETROP Groups are compared to determine whether there is any discrepancy between the number of days scheduled between examinations, and the actual number of days elapsed, in patients treated with laser who subsequently developed a RD. Data was analyzed to assess provider reliability, to determine whether an outlier exists, and if so, could it be a confounding variable in the difference in outcomes between Pre- and Post-ETROP Groups. No such outlier was found. (E1 = examination # 1, E2 = examination # 2, etc).