Table 2

Lifestyle and reading habits of myopic children with various 1-year progression speeds

CharacteristicsTotalParticipants with myopia in 2013 (n=3256)
Slow progression
(ΔSE>−0.5 D)
Moderate progression
(−1.0D<ΔSE≤−0.5D)
Fast progression
(ΔE≤−1.0 D)
N (%)/Mean (SD)N/Mean%/SDN/Mean%/SDN/Mean%/SD
Total3256152946.9692828.5079924.54
Near work habits
Age when starting near work
 <6 years2.531 (77.73)117676.9173779.4261877.35
 ≥6 years330 (10.14)1489.689310.028911.14
 Unknown395 (12.13)20513.419810.569211.51
Time spent on near work daily
 <2 hours1550 (47.60)73047.7446550.1135544.43
 ≥2 hours1308 (40.17)59238.7236439.2235244.06
 Unknown398 (12.22)20713.549910.679211.51
Distance from near work
 ≥30 cm1437 (44.13)70446.0442245.4731138.92
 <30 cm1133 (34.80)48331.5932635.133244.55
 Unknown686 (21.07)34222.3718019.4016420.53
10-min rest period after 30 min of near work
 Yes1109 (34.06)52534.3432434.9126032.54
 No1265 (38.85)58138.0034737.3933742.18
 Unknown882 (27.09)42327.6725727.6920225.28
Use of cellphones, computers or computer tablets in the past year
 Yes2602 (79.91)120078.4875281.0365081.35
 No268 (8.23)1268.24818.73617.63
 Unknown386 (11.86)20313.289510.248811.01
Outdoor activities
Time spent participating in outdoor activities after school on weekdays
 <1 hour/day2240 (68.80)103467.6363568.4357171.46
 ≥1 hour/day587 (18.03)28018.3117719.0713016.27
 Unknown429 (13.18)21514.0611612.509812.27
Time spent participating in outdoor activities on the weekend
 <2 hours/day1813 (55.68)84955.5352456.4744055.07
 ≥2 hours/day1011 (31.05)46330.2828530.7126332.92
 Unknown432 (13.27)21714.1911912.829612.02
Attending an after-school tutorial programme
 Yes2217 (68.09)104168.0863868.7553867.33
 No630 (19.35)28018.3118319.7216720.90
 Unknown409 (12.56)20813.6010711.539411.76
‘Cycloplegics’ use
 Yes1353 (41.55)61740.3542746.0130938.67
 No1903 (58.45)91259.6550153.9949061.33