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Table 6 Baseline characteristics of the Dropout group and the difference with the Retained group

From: Effect of dental intervention on improvements in metabolic syndrome patients: a randomized controlled clinical trial

  Dropout group (D) Retained group (R) Difference between D–R
Group Total (n = 30) Total (n = 82)  
Control (n = 13) Intervention (n = 17)    p value
Age (years), mean (SD) 55.8 (11.8)   54.7 (10.3) 57.5 (9.9) 0.201a
Gender, n (%)      0.269b
 Male 11 (84.6%) 10 (58.8%) 21 (70%) 48 (58.5%)  
 Female 2 (15.4%) 7 (41.2%) 9 (30%) 34 (41.5%)  
Body height (cm), mean (SD) 170.9 (7.7) 168 (7.2) 169.2 (7.4) 165.2 (8.4) 0.023a*
Body weight (kg), mean (SD) 77.4 (10.2) 76.9 (14.5) 77.1 (12.6) 74.1 (12.1) 0.260a
BMI, mean (SD) 26.6 (3.4) 27.1 (4.0) 26.9 (3.7) 27.1 (3.8) 0.743a
Waist circumference (cm), mean (SD) 91.7 (8.0) 98.9 (8.9) 98.4 (8.4) 98.1 (7.8) 0.851a
Types of treatment in need, n (%)      
 Periodontal treatment 13(100%) 17 (100%) 30 (100%) 82 (100%)  
 Fabrication of fixed partial denture 1 (7.7%) 1 (5.9%) 2 (6.7%) 3 (3.7%)  
 Fabrication of removable partial denture 4 (30.8%) 9 (52.9%) 13 (43.3%) 26 (31.7%)  
PD ≥ 4 mm (% of sites), mean (SD) 28.8 (23.1) 19.5 (16.4) 23.6 (19.8) 17.0 (15.6) 0.070a
BOP (% of sites), mean (SD) 30.6 (20.9) 29.6 (23.7) 30.0 (22.1) 22.6 (19.9) 0.092a
Missing tooth (n), mean (SD) 4.9 (3.9) 6.2 (5.3) 5.7 (4.7) 3.4 (4.1) 0.014a*
  1. Data are presented as mean (standard deviation) (for all such values)
  2. aStatistical analysis using student’s t-test
  3. bStatistical analysis using chi-square test
  4. *Statistically significant p values for between-group differences