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Table 1 Demographic information of patients

From: Tooth alignment and pain experience with A-NiTi versus Cu-NiTi: a randomized clinical trial

Variable A-NiTi (%) Cu-NiTi (%) P value Test statistic
Gender     
 Male 22 (50) 22 (50) 1* 0.001
 Female 22 (50) 22 (50)
 Mean age (years) 18.8 ± 4.2 18.3 ± 4.7 0.598** 0.528
Age groups (years)     
 12 ≤ age < 18 24 (48) 26 (52) 0.667* 0.185
 ≤ 18 age ≤ 25 20 (52.6) 18 (47.4)
  1. *Chi-square test
  2. **Student t test