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Table 3 Effect of self-reported compliance with eye exercises on change in uncorrected visual acuity between baseline and 9 and 21 months

From: Effect of Chinese eye exercises on change in visual acuity and eyeglasses wear among school-aged children in rural China: a propensity-score-matched cohort study

 Full SampleaMatched Sampleb
OutcomeRegularly Practiced Eye ExercisesDid Not Regularly Practice Eye ExercisesDifferences Between Means (95% CI)P ValueRegularly Practiced Eye ExercisesDid Not Regularly Practice Eye ExercisesDifferences Between Means (95% CI)P Value
9-month uncorrected visual acuity change (LogMAR)0.11 (0.19)0.12 (0.18)−0.009 (− 0.028, 0.010)0.3360.11 (0.18)0.12 (0.19)− 0.011 (− 0.029, 0.007)0.232
21-month uncorrected visual acuity change (LogMAR)0.19 (0.20)0.21 (0.21)−0.011 (− 0.031, 0.010)0.3200.19 (0.20)0.21 (0.21)− 0.012 (− 0.029, 0.005)0.168
  1. aAge, sex, myopia power (diopters of most myopic eye), uncorrected visual acuity (LogMAR of better seeing eye), ownership of eyeglasses, and time spent on near work, middle distance activities and outdoor activity were included in the multiple regression
  2. bMatched using propensity score modeling on age, sex, myopia power (diopters of most myopic eye), uncorrected visual acuity (LogMAR of better seeing eye), ownership of eyeglasses, and time spent on near work, middle distance activities and outdoor activity