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Table 2 Patient characteristics obtained from the questionnaire

From: Chronic periodontitis and its possible association with oral squamous cell carcinoma – a retrospective case control study

  OSCC Control p-value
Teeth brushing >1/d 58/69 (84%) 115/123 (94%) 0.045
Frequency of oral rinse/week 6 (SD 8) 4 (SD 5) 0.015
Use of dental floss 21/69 (30%) 76/123 (62%) <0.0001
Time to last dental examination ≤ 6 months 50/69 (72%) 93/123 (76%) 0.588
Gum bleeding 5/69 (7%) 3/123 (2%) 0.138
Halitosis 2/69 (3%) 2/123 (2%) 0.443
Periodontal treatment 18/69 (26%) 60/123 (49%) 0.002
Dental prosthesis 54/69 (78%) 119/123 (97%) <0.0001
Tobacco/pack years 30.7 (SD 34) 9.3 (SD 17.7) <0.0001
Alcohol 38/69 (55%) 87/123 (71%) 0.03
Concomitant diseases    
Coronary heart diseases 19/69 (28%) 35/123 (29%) 1
Diabetes mellitus 4/69 (6%) 3/123 (2.4%) 0.253
Pulmonary diseases 4/69 (6%) 4/123 (3.3%) 0.461
Apoplexy in anamnesis 3/69 (4%) 5/123 (4%) 1
Autoimmune disorders 2/69 (3%) 6/123 (5%) 0.453
Osteoporosis 1/69 (1%) 3/123 (2,4%) 1
Gastric diseases 2/69 (3%) 1/123 (0.8%) 0.294
Stress before examination (VAS) 4.6 (SD 2.5) 4.8 (SD 2.8) 0.619
  1. Significant differences are given in bold letters. For the parameter “frequency of oral rinse/week”, “tobacco/pack years” and “stress before examination (VAS)”, mean values with standard deviations (SD) are given.