Table 4 Analysis of the additive interaction of parental inheritance and poor reading and writing habits on students’ myopia

Parental myopia and Habit 1

 DUM 1

1.69

5.43(3.60–8.20)

< 0.01

1.49

4.44 (2.90–6.78)

< 0.01

 DUM 2

1.33

3.76(2.91–4.94)

< 0.01

1.27

3.58 (2.74–4.73)

< 0.01

 DUM 3

2.55

12.83(9.81–17.01)

< 0.01

2.40

10.99 (8.33–14.68)

< 0.01

Parental myopia and Habit 2

 DUM 1

1.47

4.38 (3.38–5.68)

< 0.01

1.26

3.53 (2.70–4.62)

< 0.01

 DUM 2

0.65

1.91 (1.60–2.30)

< 0.01

0.63

1.88 (1.56–2.27)

< 0.01

 DUM 3

1.89

6.59 (5.43–8.04)

< 0.01

1.78

5.92 (4.84–7.27)

< 0.01