Table 3.
Univariate and multivariate logistic regression analyses of the association between AHA and RA
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P | OR (95% CI) | P | |
| Analysis 1: total RA vs. HC | ||||
| Age | 1.03 (0.99–1.06) | 0.075 | 1.04 (1.00–1.09) | 0.037 |
| Gender | 1.59 (0.79–3.17) | 0.189 | 2.19 (0.86–5.62) | 0.100 |
| AHA1 | 1.01 (1.00–1.01) | 0.001 | 1.00 (0.99–1.00) | 0.992 |
| AHA2 | 1.00 (0.99–1.00) | 0.295 | – | – |
| AHA3 | 1.18 (1.09–1.27) | 1 × 10−5 | 1.16 (1.07–1.26) | 3 × 10−4 |
| AHA4 | 1.03 (1.00–1.06) | 0.025 | 1.00 (0.96–1.04) | 0.825 |
| AHA5 | 1.03 (1.02–1.05) | 8 × 10−5 | 1.02 (1.00–1.03) | 0.034 |
| AHA6 | 1.06 (1.03–1.09) | 4 × 10−4 | 1.01 (0.98–1.04) | 0.367 |
| AHA7 | 1.16 (1.05–1.28) | 0.004 | 1.04 (0.96–1.13) | 0.339 |
| AHA8 | 1.65 (1.30–2.09) | 3 × 10−4 | 1.20 (0.89–1.62) | 0.226 |
| Analysis 2: DNRA vs. HC | ||||
| Age | 1.04 (0.98–1.11) | 0.226 | 1.07 (0.98–1.15) | 0.115 |
| Gender | 2.62 (0.59–13.21) | 0.193 | 9.29 (1.01–85.3) | 0.049 |
| AHA1 | 0.99 (0.99–1.01) | 0.898 | – | – |
| AHA2 | 1.00 (0.99–1.00) | 0.243 | – | – |
| AHA3 | 1.16 (1.06–1.27) | 0.002 | 1.18 (1.06–1.32) | 0.003 |
| AHA4 | 1.03 (0.99–1.07) | 0.112 | 1.03 (0.98–1.08) | 0.311 |
| AHA5 | 1.01 (0.99–1.03) | 0.062 | 1.01 (0.99–1.03) | 0.186 |
| AHA6 | 1.00 (0.98–1.03) | 0.664 | – | – |
| AHA7 | 1.06 (0.98–1.15) | 0.143 | – | – |
| AHA8 | 1.21 (0.83–1.70) | 0.347 | – | – |
The number of RA patients in analysis 1 and in analysis 2 was 106 and 18, respectively. The number of HC was same as 81 in both analyses