Polymorphism rs2073618 of the TNFRSF11B (OPG) Gene and Bone Mineral Density in Mexican Women with Rheumatoid Arthritis

Table 4

Factors associated with low bone mineral density in the logistic regression.

Variables	OR	95% CI
Age, years	1.105	1.041–1.173	0.001
ACPAS, positives	3.755	1.299–10.852	0.015
BMI, kg/m^2	—	Not in the model	—
HAQ-DI, score	—	Not in the model	—
Glucocorticoid dose, mg/day	—	Not in the model	—
Genotype (GG + GC + CC)	—	Not in the model	—

ACPAS: antibodies against cyclic citrullinated peptides/proteins, including anti-CCP2 (+) or anti-MCV (+); HAQ-DI: Health Assessment Questionnaire-disability index; multivariate analysis: logistic regression analysis; dependent variable: low bone mineral density (low BMD). Using a stepwise method.