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Table 1 Measurement results of the concentration of cyclosporine A in 2% cyclosporine ophthalmic solutions

From: Influence of filtering on the effective concentration and sterility of a 2% cyclosporine ophthalmic solution: a quality improvement perspective

Preparer

Filtered

sample No.

Concentration

(ng/mL)

Unfiltered

sample No.

Concentration

(ng/mL)

p-value*

A

1

501.83

1

546.63

0.011

 

2

429.03

2

525.77

 

B

3

398.43

3

380.97

 
 

4

374.00

4

465.23

 

C

5

338.30

5

577.30

 
 

6

641.33

6

644.13

 

D

7

84.40

7

466.67

 
 

8

85.13

8

509.90

 

E

9

326.43

9

441.57

 
 

10

286.23

10

439.20

 
 

Mean ± S.D.

346.51 ± 170.76

Mean ± S.D.

499.74 ± 76.95

 
 

 C.V.

0.493

 C.V.

0.154

 
  1. * paired t-test
  2. Abbreviations: S.D., standard deviation; C.V., coefficient of variation