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Table 1 Baseline Comparison of the experimental and control groups in terms of demographic variables

From: Improvement in oral health related quality of life among the elderly: a randomized controlled trial

GroupAllIntervention (N = 43)Control (N = 43) 
  Mean (SD)Number (%)Mean (SD)Number (%)P-value
Age63.35 (4.96)63.12 (4.93) 63.95 (5.21) ❖ 0.45
Sex 0.66
 Female38 (41.3) 18 (41.9) 20 (46.5) 
 Male54 (58.7) 25 (58.1) 23 (53.5) 
Academic level 0.23
 Elementary school19 (20.7) 12 (27.9) 6 (14.0) 
 Intermediate school12 (13) 4 (9.3) 7 (16.3) 
 High school1 (1.1) 1 (2.3) 0 (0.0) 
 Diploma34 (37) 15 (34.9) 17 (39.5) 
 University degree21 (22.8) 7 (16.3) 12 (27.9) 
 Illiterate5 (5.4) 4 (9.3) 1 (2.3) 
Job 0.29
 Worker3 (3.3) 1 (2.3) 1 (2.3) 
 Employee5 (5.4) 4 (9.3) 1 (2.3) 
 Self-employed17 (18.5) 7 (16.3) 6 (14.0) 
 Retired40 (43.5) 17 (39.5) 22 (51.2) 
 Housewife27 (29.3) 14 (32.6) 13 (30.2) 
Marital status 0.27
 Married79 (85.9) 38 (88.4) 35 (81.4) 
 Single1 (1.1) 0 (0.0) 1 (2.3) 
Widowed12 (13) 5 (11.6) 7 (16.3) 
  1. ❖ Independent t test
  2. Chi square test
  3. Fischer’s exact test