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Table 3 Stratified analysis of factors by key departments

From: Predictors of failed attendances in a multi-specialty outpatient centre using electronic databases

Variable Surgical (n = 7961) Medical (n = 6848) ENT (n = 1935) Ophthalmology (n = 3721) Therapy (n = 613) Others (n = 574)
Age group       
   Up to 20 years 1 1 1 1 1 1
   21 to 30 years 0.77* 0.99 0.88 1.36 1.12 0.87
   31 to 40 years 0.85 0.81 0.76 1.25 1.12 1.23
   41 to 50 years 0.71* 0.7* 0.52* 0.87 0.88 0.81
   51 to 60 years 0.71* 0.66* 0.49* 0.62* 0.6 0.42
   More than 60 years 0.89 0.69* 0.86 1.1 0.62 0.79
Race       
   Chinese 1 1 1 1 1 1
   Malay 1.69* 1.53* 1.26 1.35 0.98 0.91
   Indian 1.44* 1.67* 1.53 1.85* 1.11 5.28*
   Others 1.01 0.95 1.19 1.17 0.85 0.7
Days from scheduling to actual appointment       
   Up to 7 days 1 1 1 1 1 1
   7 to 21 days 1.46* 1.36* 1.1 0.95 2.07* 0.78
   More than 21 days 2.77* 2.7* 2.28* 1.99* 0.64 2.8*
Percentage of previous failed appointments       
   Up to 20% 1 1 1 1 1 1
   21% to 40% 0.7* 1.37* 0.49* 0.97 1.24 1.18
   41% to 60% 0.86 1.7* 1.06 1.21 1.98* 1.06
   More than 60% 1.26* 3.1* 1.39 1.41* 1.59 3.25*
   No previous appointment 3.84* 5.96* 4.07* 3.24* 1.86 4.37*
Provided cell phone number 0.07* 0.1* 0.06* 0.17* 0.15* 0.15*
Approximate distance from TTSH       
   <6 km 1 1 1 1 1 1
   6 to 14 km 1.04 1.06 0.81 1.07 1.02 1.07
   >14 km 1.13 1.12 0.86 1.34* 0.98 1.46
  1. Numbers presented within the table represent adjusted odds ratios. The baseline comparison group has an odds ratio of 1 and is italicised. Odds ratios significant at a level of p < 0.05 are indicated with an asterisk "*".