Table 2.

Baseline characteristics with in‐between group significance testing for all subjects (left side) and for subjects completing the study (right side).

Baseline characteristics	All subjects Mean ± SD Median (range)		All subjects	Completing Mean ± SD Median (range)		Completing
	OKL (n = 30)	SVS (n = 30)	p‐Value	OKL (n = 19)	SVS (n = 28)	p‐Value
Age, years	9.77 ± 1.38	10.16 ± 1.68	0.33*	10.03 ± 1.60	10.06 ± 1.70	0.95*
Sex, Male (%)	14 (46.7)	12 (40.0)	0.60 ‡	7 (36.8)	10 (35.7)	0.94 ‡
SER cyclo, D	–2.00 (–0.69 to –4.88)	–2.16 (–0.81 to –4.81)	0.81 †	–1.88 (–0.69 to –3.63)	–2.16 (–0.81 to –4.81)	0.59 †
Axial length, mm	24.12 ± 0.70	24.33 ± 0.67	0.24*	23.92 ± 0.52	24.32 ± 0.69	0.08*

D = dioptre; F = female; M = male; mm = millimetres; n = number; OKL = Orthokeratology lens group; SD = standard deviation; SER cyclo = cycloplegic spherical equivalent refractive error; SVS = single‐vision spectacles group.

For the variables SER cyclo and axial length, the value for right and left eyes for each subject has been averaged.

^*Unpaired t‐test.

^† Mann–Whitney rank sum test.

^‡ Chi‐square test.