Table 3. Factors associated with vertebral fracture in 201 patients.
| Odds ratio | 95% Confidence interval | P-value | |
|---|---|---|---|
| Univariate analysis | |||
| Age | 1.07 | 1.03–1.11 | 0.001 |
| Sex | 1.13 | 0.55–2.32 | 0.730 |
| BMI | 1.02 | 0.95–1.10 | 0.560 |
| Low BMD (T-score <−2.5) | 4.19 | 1.85–9.50 | 0.001 |
| IgM vs IgG and IgA | 1.92 | 0.93–3.97 | 0.078 |
| IgG vs IgM and IgA | 0.67 | 0.32–1.37 | 0.270 |
| IgA vs IgG and IgM | 0.43 | 0.10–1.95 | 0.270 |
| Lambda vs kappa | 2.51 | 1.21–5.24 | 0.014 |
| Multivariate analysis | |||
| Age | 1.07 | 1.03–1.12 | 0.002 |
| Sex | 1.08 | 0.45–2.58 | 0.860 |
| BMI | 1.03 | 0.94–1.13 | 0.470 |
| Low BMD | 3.65 | 1.44–9.26 | 0.006 |
| Heavy chain isotype | 1.67 | 0.87–3.19 | 0.120 |
| Lambda vs kappa | 4.32 | 1.80–11.16 | 0.002 |
Abbreviations: BMD, bone mineral density; BMI, body mass index; Ig, immunoglobulin.