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Table 3 Odds ratios (ORs) and 95% confidence intervals (CIs) for advanced periodontitis in relation to human T cell leukemia virus-1 (HTLV-1) infections by status of reticulocyte count levels

From: Association between human T cell leukemia virus 1 (HTLV-1) infection and advanced periodontitis in relation to hematopoietic activity among elderly participants: a cross-sectional study

  Reticulocyte count levels Interaction
Low High
HTLV-1 infection p HTLV-1 infection p p
(−) (+) (−) (+)
No of subjects 345 66   337 74   
No of case (%) 72 (20.9) 21 (31.8)   75 (22.3) 13 (17.6)   
Model 1 1.00 1.85 (1.03, 3.32) 0.040 1.00 0.67 (0.34, 1.30) 0.238 0.036
Model 2 1.00 1.92 (1.05, 3.49) 0.034 1.00 0.69 (0.35, 1.36) 0.283 0.039
Model 3 1.00 1.89 (1.04, 3.45) 0.038 1.00 0.70 (0.35, 1.37) 0.295 0.050
  1. Advanced periodontitis is defined as periodontal pocket ≥ 6.0 mm. Low reticulocyte levels were <5.175×104 cells/μL for men and <4.926×104 cells/μL for women. Model 1: adjusted only for sex and age. Model 2: adjusted further for smoking status (never, former, current), remained number of teeth, status of decayed teeth (presence, absence), carotid intima-media thickness (CIMT), and hemoglobin. Model 3: adjusted further for glomerular filtration rate (GFR)