Research Article

Tooth Loss and Associated Factors in Mexican Older Adults in Nursing Homes: A Multicenter Cross-Sectional Study

Table 2

Crude and adjusted negative binomial regression models for the number of tooth loss in Mexico, 2019.

Crude modelAdjusted model
Coefficient% change (IRR) valueCoefficient% change (IRR) value

Demographic variables
Age (years)0.01511.52 (0.46–2.59)0.0050.00830.83 (0.04–1.64)0.039
Sex
 Male11
 Female0.08949.36 (-4.82–25.35)0.1990.177519.43 (-4.97–49.73)0.124
Socioeconomic variables
Schooling
 More than secondary11
 Secondary and less0.154116.67 (8.38–25.58)<0.0010.101210.65 (0.27–22.11)0.044
Behavioral variables
Smoking
 No11
 Yes0.242327.42 (17.71–37.93)<0.0010.245227.78 (8.17–50.96)0.004
Frequency of tooth brushing
 ≥2 times a day11
 <2 times a day0.540671.70 (60.99–83.12)<0.0010.501565.13 (53.47–77.68)<0.001

Reference category. Note: the model was adjusted for the variables that appear in the table. Confidence intervals were calculated with standard errors considering the clusters (AM, VGT, LT, and OT). Interactions were tested but none obtained a value of ; for this reason, they were not included in the model.