BMC Ophthalmology

Table 3 Trends in myopia prevalence among high school students in Fenghua city, eastern China, during 2001 to 2015

From: The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey

	2001		2015		APC (%)	95%CI	P value
	N	Prevalence (%)	N	Prevalence (%)	APC (%)	95%CI	P value
Total myopia	1923	79.53	2570	87.65	0.59	0.41, 0.77	0.000
Low myopia	791	32.71	716	24.42	−1.73	−2.23, − 1.24	0.000
Moderate myopia	939	38.83	1340	45.70	0.78	0.36, 1.20	0.001
High myopia	191	7.90	487	16.61	5.48	4.40, 6.54	0.000
Very high myopia	2	0.08	27	0.92	14.59	7.33, 22,34	0.001

APC annual percent change, CI, confidence interval, Annual percent change between 2001 and 2015 was calculated by the myopia prevalence

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