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Table 3 Regression analysis showing variation in dental arch dimensions with Age

From: A secondary analysis to determine variations of dental arch measurements with age and gender among Ugandans

Measurement (mm) Regression coefficient (95 % CI) P value Constant (95 % CI)
Maxillary (overall) 0.96 (−0.47 to 2.40) 0.19 31.56 (30.41 to 32.72)
 Inter-canine distance 0.88 (0.09 to 1.67) 0.03 35.36 (34.73 to 36.00)
 Second inter-premolar distance 1.02 (0.16 to 1.88) 0.02 41.98 (41.30 to 42.68)
 First molar distance 1.21 (0.26 to 2.16) 0.01 47.52 (46.76 to 48.29)
 Total arch length 0.57 (−0.26 to 1.40) 0.18 32.32 (31.65 to 32.99)
 Anterior segment length 0.34 (−0.24 to 0.92) 0.25 13.16 (12.70 to 13.62)
 Posterior segment length 1.30 (−0.52 to 3.12) 0.16 19.16 (17.70 to 20.62)
Mandibular (overall) 1.20 (−0.29 to 2.70) 0.12 27.30 (26.10 to 28.50)
 Inter-canine distance 0.52 (−0.24 to 1.27) 0.18 26.72 (26.12 to 27.33)
 Second inter-premolar distance 0.80 (−0.11 to 1.71) 0.09 36.04 (35.31 to 36.77)
 First molar distance 0.92 (−0.26 to 2.10) 0.13 41.14 (40.20 to 42.08)
 Total arch length 0.99 (0.12 to 1.86) 0.03 28.73 (28.03 to 29.42)
 Anterior segment length 0.28 (−0.4 to 0.95) 0.42 9.08 (8.54 to 9.63)
 Posterior segment length 4.94 (−0.31 to 10.18) 0.07 22.37 (18.15 to 26.59)