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Table 1 Characteristics of the study population

From: Panoramic prediction equations to estimate implant- to-mandibular canal dimensions in the mandibular posterior region: implications for dental implant treatment

  Validation group
(n = 144)
Cross-validation group
(n = 148)
Variable 1. P
(n = 35)
2. P
(n = 33)
1. M
(n = 45)
2. M
(n = 31)
1. P
(n = 35)
2. P
(n = 34)
1. M
(n = 43)
2. M
(n = 36)
Age (years) (mean ± SD) 58.7 (12.1) 61.8 (11.8) 57.7 (14.1) 61.2 (11.7) 60.0 (9.4) 60.9 (12.1) 57.7 (14.1) 63.8 (9.9)
Gender (n) (% female) 26 (74.3) 20 (60.6) 28 (62.2) 16 (51.6) 25 (71.0) 22 (62.9) 28 (65.1) 19 (52.8)
Implant-to-MC dimensions by PAN (mm) (mean ± SD) 2.7 (1.6) 2.7 (1.6) 2.5 (1.2) 2.3 (1.3) 2.7 (1.7) 2.7 (1.3) 2.5 (1.2) 2.4 (1.4)
  1. MC mandibular canal; PAN panoramic radiography; P premolar; M molar; n number; SD standard deviation