marginally significantp = 0.093
As shown in Table 3 , although some p -values were marginally significant, individuals who had received at least a senior school diploma had a 4.71-fold (RR = 4.71, p = 0.093) and 3.48-fold (RR = 3.48, p = 0.039) probability of being classified in Class 3 than in Classes 1 and 2, respectively.