Skip to main content

Table 1 Distribution of MSE in the right eye according to age and gender

From: Refractive errors and risk factors for myopia in infants aged 1–18 months in Tianjin, China

Age in months N Mean SD 95% CI for mean
Lower bound Upper bound
1–3 140 2.74 1.74 2.45–3.03
3–6 143 2.02 1.39 1.79–2.25
6–9 156 1.26 1.28 1.05–1.46
9–12 73 1.27 1.23 0.95–1.53
12–18 71 1.35 1.44 1.01–1.69
Total 583 1.81 1.56 1.68–1.94
P <0.001
Boys
  312 1.91 1.60 1.73–2.10
1–3 77 2.87 1.93 2.45–3.30
3–6 78 2.10 1.29 1.79–2.38
6–9 76 1.30 1.19 1.02–1.59
9–12 46 1.37 1.33 1.03–1.77
12–18 35 1.42 1.51 0.89–1.97
Girls
  271 1.69 1.52 1.52–1.87
1–3 63 2.58 1.50 2.19–2.93
3–6 65 1.93 1.51 1.58–2.29
6–9 80 1.22 1.37 0.94–1.54
9–12 27 1.04 1.04 0.63–1.45
12–18 36 1.28 1.38 0.84–1.75
P 0.104