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. 2015 Feb 9;7(3):176–179. doi: 10.5005/jp-journals-10005-1260

Table 1: Distribution of anxiety scores using VPT before intervention, after intervention and after dental exam in study group

Place      Subjects (N)      Mean ± SD      Chi-square      p-value (Friedman ANOVA test)     
Waiting area      30      6.10 ± 0.80               
After intervention (OPD)      30      4.50 ± 0.77               
               53.2      0.00     
Postoperative      30      3.70 ± 0.70