Table 1

Mean and cumulative changes in the cycloplegic SER and AL from baseline to 36 months in the DIMS group and Control-to-DIMS group

Time (months)	Mean±SD
	DIMS (n=65)	Control-to-DIMS (n=55)	DIMS (n=65)	Control-to-DIMS (n=55)
	SER (D)		Changes in SER (D)
0	−2.98±0.96	−2.73±0.99	–	–
6	−3.10±0.97	−3.07±1.02	−0.12±0.30	−0.34±0.33
12	−3.16±0.97	−3.22±1.08	−0.18±0.37	−0.49±0.40
18	−3.23±0.96	−3.41±1.09	−0.25±0.50	−0.68±0.52
24	−3.32±1.00	−3.61±1.15	−0.34±0.52	−0.87±0.59
30	−3.39±1.01	−3.73±1.23	−0.41±0.58	−1.00±0.67
36	−3.50±1.08	−3.65±1.34	−0.52±0.69	−0.92±0.81
Time (months)	AL (mm)		Changes in AL (mm)
0	24.68±0.82	24.57±0.88	–	–
6	24.72±0.81	24.75±0.89	0.04±0.10	0.18±0.09
12	24.78±0.81	24.86±0.91	0.10±0.14	0.29±0.14
18	24.81±0.81	24.97±0.93	0.13±0.18	0.40±0.18
24	24.88±0.80	25.06±0.96	0.20±0.21	0.49±0.24
30	24.93±0.79	25.12±0.99	0.25±0.24	0.55±0.27
36	24.99±0.80	25.14±1.01	0.31±0.26	0.57±0.33

The grey blocks indicate the period of wearing DIMS lenses in the Control-to-DIMS group.
AL, axial length; Control-to-DIMS, subjects wore single vision spectacle lens during the 2-year randomised controlled trial and switched to wear DIMS lens; D, dioptres; DIMS, defocus incorporated multiple segments; SER, spherical equivalent refraction.