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Table 2 Factors influencing sinus mucosal thickness

From: Factors influencing the sinus membrane thickness in edentulous regions: a cone-beam computed tomography study

Variable Category (mm) P value
Sex Male: 1.80 ± 1.60 0.0078**
Female: 0.76 ± 0.92
Age < 55 years: 0.78 ± 1.08 0.119
≥ 55 years: 1.29 ± 1.36
Systemic diseases +: 1.37 ± 1.34 0.24
−: 1.02 ± 1.26
Time after tooth extraction < 6 months: 1.76 ± 1.47 0.0075**
≥ 6 months: 0.74 ± 1.07
Smoking +: 1.67 ± 1.58 0.067
−:0.93 ± 1.11
Reason for tooth extraction per (+): 1.66 ± 1.64 0.020*
per (−): 0.79 ± 0.98
Residual bone height < 2.5 mm: 0.94 ± 1.24 0.117
≥ 2.5 mm: 1.50 ± 1.33
Septa +: 2.39 ± 1.80 0.0076**
−:0.91 ± 1.13
Nasal division +: 1.65 ± 1.58 0.038*
−:0.86 ± 1.20
  1. *p < 0.05; **p < 0.01