Table 1 Baseline characteristics of study participants who completed 2 years versus those who have not completed 2 years.

From: Safety and efficacy of 0.02% and 0.01% atropine on controlling myopia progression: a 2-year clinical trial

Variables

Completed 2 years (N = 300)

Not completed 2 years (N = 100)

0.02% atropine N = 105

0.01% atropine N = 106

Control group N = 89

P

0.02% atropine N = 33

0.01% atropine N = 36

Control group N = 31

P

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Age (year)

9.6 ± 1.8

9.4 ± 1.7

9.3 ± 1.4

0.56

9.3 ± 2.1

9.2 ± 2.5

9.6 ± 2.3

0.66

Sex (male, n and %)

55 (52.4%)

55 (51.9%)

47 (52.8%)

0.99

18 (54.5%)

20 (55.6%)

15 (48.4%)

0.82

Body mass index (kg/m2)

17.65 ± 3.21

17.47 ± 3.05

17.43 ± 3.12

0.71

17.21 ± 3.54

17.30 ± 3.62

17.63 ± 3.49

0.62

SER (D)

 − 2.81 ± 1.47

 − 2.76 ± 1.56

 − 2.66 ± 1.39

0.62

 − 2.70 ± 1.79

 − 2.65 ± 1.88

 − 2.72 ± 1.75

0.58

Intraocular pressure (mmHg)

15.9 ± 3.1

16.9 ± 2.8

17.0 ± 3.0

0.38

15.9 ± 3.1

16.9 ± 2.8

17.0 ± 3.0

0.42

Pupil diameter (mm)

6.12 ± 0.73

6.08 ± 0.59

6.15 ± 0.61

0.42

6.41 ± 0.82

6.19 ± 0.79

6.22 ± 0.89

0.45

Accommodation amplitude (D)

15.92 ± 4.85

15.16 ± 5.06

16.11 ± 5.29

0.67

15.00 ± 8.01

15.34 ± 7.86

15.88 ± 7.23

0.70

Axial length (mm)

24.61 ± 0.69

24.60 ± 0.72

24.54 ± 0.69

0.80

24.58 ± 0.76

24.56 ± 0.79

24.56 ± 0.80

0.76

Anterior chamber depth (mm)

3.69 ± 0.20

3.70 ± 0.20

3.66 ± 0.21

0.92

3.62 ± 0.26

3.74 ± 0.27

3.69 ± 0.31

0.88

Corneal curvature (D)

42.79 ± 1.50

42.81 ± 1.33

42.90 ± 1.09

0.76

42.81 ± 1.56

42.83 ± 1.44

42.94 ± 1.32

0.81

Corneal astigmatism (D)

0.56 ± 0.20

0.56 ± 0.28

0.58 ± 0.29

0.32

0.59 ± 0.22

0.58 ± 0.26

0.59 ± 0.30

0.41

Outdoor activity (hours per day)※

2.56 ± 1.41

2.63 ± 1.36

2.60 ± 1.33

0.89

2.63 ± 1.40

2.55 ± 1.29

2.68 ± 1.45

0.76

Near work (hours per day)#

14.33 ± 2.02

14.12 ± 1.66

14.54 ± 1.59

0.84

14.14 ± 2.11

14.39 ± 1.90

14.25 ± 2.08

0.79

Heredity

   

0.99

   

0.59

 +  + (Both parents myopic)

23

24

20

 

10

11

12

 

 +  − (One parent myopic)

55

55

45

 

13

13

14

 

 −  − (Neither parent myopic)

27

27

24

 

10

12

5

 
  1. There were no significant differences observed those who completed and did not complete the 2 years’ study.
  2. SER Spherical equivalent refractive error.
  3. ※Outdoor activity10,11 = outdoor exercise + outdoor leisure activity.
  4. #Near work10,11 = 3 * (homework + reading + playing on cell phone) + 2 * (using computer + playing video game) + 1 * (watching TV).
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