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Table 1 Participant’s characteristics

From: A randomized clinical trial using cyclopentolate and tropicamide to compare cycloplegic refraction in Chinese young adults with dark irises

  Cyclopentolate (n = 150) Tropicamide (n = 150) p-value
Age (y) 18.95 ± 1.05 19.10 ± 0.98 0.184*
Sex    0.463
 Male 57(38.0%) 51(34.0%)  
 Female 93(62.0%) 99 (66.0%)  
Mean autorefractive error (D)
 Sphere (noncycloplegic) −4.01 ± 2.26 −3.98 ± 2.61 0.923*
 Cylinder (noncycloplegic) −0.77 ± 0.96(− 0.50) −0.83 ± 0.77(− 0.50) 0.101+
 Spherical equivalent (noncycloplegic) − 4.39 ± 2.37 −4.39 ± 2.70 0.999*
Mean subjective refractive error (D)
 Sphere (noncycloplegic) −4.06 ± 2.22 −3.97 ± 2.59 0.744*
 Cylinder (noncycloplegic) −0.62 ± 0.78(− 0.50) −0.71 ± 0.73(− 0.50) 0.053+
 Spherical equivalent (noncycloplegic) −4.37 ± 2.31 −4.33 ± 2.64 0.877*
  1. Values are presented as mean ± standard deviation, median or number (%)
  2. D diopters
  3. *p-value by t-test; p-value by chi-square test; +p-value by Wilcoxon test