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Table 5 Multivariate logistic regression analyses of the frequencies of non-single canal configurations in mandibular first premolars

From: Frequency of non-single canals in mandibular premolars and correlations with other anatomical variants: an in vivo cone beam computed tomography study

Explanatory variables (test category/reference category)

Multivariate logistic regression analyses

Non-single canal

Odds ratio (95% CI)

P value

Sex (male/female)

2.281 (1.637–3.179)

< 0.001*

Age (per year)

0.988 (0.971–1.005)

0.156

Side (left/right)

0.987 (0.713–1.367)

0.939

DLRs in M1 s (yes/no)

1.539 (1.077–2.200)

0.018*

  1. Complicated canals and C-shaped canals were categorized as non-single canal
  2. *The significance level is P = .05
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BMC Oral Health

ISSN: 1472-6831

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