Table 5 Evaluation index for additive interaction between parental inheritance and poor reading and writing habits

Parental myopia and Habit 1

 Model 1

254.23 (36.39–427.06)

0.97 (0.95–0.98)

36.32 (22.86–57.71)

 Model 2

167.26 (19.37–315.15)

0.96 (0.94–0.98)

28.83 (18.13–45.83)

Parental myopia and Habit 2

 Model 1

49.94 (20.93–78.95)

0.90 (0.87–0.94)

12.63 (9.48–16.83)

 Model 2

34.87 (13.83–55.92)

0.89 (0.85–0.92)

11.23 (8.49–14.86)