Table 1

Demographics and parental characteristics of myopic children with various 1-year progression speeds

Characteristics	Total	Participants with myopia in 2013 (n=3256)
	Total	Slow progression (△SE>−0.5D)		Moderate progression (−1.0D<△SE≤−0.5D)		Fast progression (△SE≤−1.0D)
	N (%)/Mean (SD)	N/Mean	%/SD	N/Mean	%/SD	N/Mean	%/SD
Total	3256	1529	46.96	928	28.50	799	24.54
Demographics and parental characteristics
Age (year)	7.49 (0.31)	7.49	0.31	7.51	0.31	7.47	0.30
Baseline spherical equivalent (D)	−1.43 (1.10)	−1.27	1.04	−1.36	0.92	−1.80	1.31
Sex
Female	1449 (44.50)	694	45.39	412	44.40	343	42.93
Male	1807 (55.50)	835	54.61	516	55.60	456	57.07
Area of residence
Urban	1623 (49.85)	748	48.92	475	51.19	400	50.06
Suburban	1633 (50.15)	781	51.08	453	48.81	399	49.94
Maternal education level
High school or less	1484 (45.58)	711	46.50	427	46.01	346	43.30
College or beyond	1357 (41.68)	603	39.44	427	42.67	358	44.81
Unknown	415 (12.75)	215	14.06	105	11.31	95	11.89
Parental myopia
None	145 (4.45)	73	4.77	49	5.28	23	2.88
One myopic	772 (23.71)	370	24.20	225	24.25	177	22.15
Both myopic	1923 (59.06)	871	56.97	550	59.27	502	62.83
Unknown	416 (12.78)	215	14.06	104	11.21	97	12.14