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Table 2 Average thickness by age group

From: Thickness of the Schneiderian membrane and its correlation with anatomical structures and demographic parameters using CBCT tomography: a retrospective study

  Age (years)   
< 45 45–54 55–64 65+ Overall  
N (%) N (%) N (%) N (%) N (%) p value
Total 14 (100.0) 14 (100.0) 28 (100.0) 20 (100.0) 76 (100.0)  
  Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) p value
Average thickness (mm)—overall 1.55 (1.21) 1.86 (1.57) 1.61 (1.25) 1.45 (0.86) 1.60 (1.20) 0.878