Table 2.
Association Between BB Index Score and Odds of Emergency Hospital Admission in the Nested Case-Control Analysis (N=2,892)
| BB Index Score | Case Patients, No. | Control Patients, No. | Unadjusted | Adjusteda | ||||
|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||
| Odds Ratio | 95% CI | P Value | Odds Ratio | 95% CI | P Value | |||
| 0 | 14 | 60 | 1.525 | 0.752–3.094 | .24 | 2.148 | 1.009–4.572 | .047 |
| Q1 (>0 to <0.257) | 188 | 446 | 2.674 | 1.762–4.059 | <.001 | 1.832 | 1.157–2.901 | .01 |
| Q2 (0.257 to <0.395) | 171 | 437 | 2.137 | 1.422–3.212 | <.001 | 1.569 | 1.002–2.427 | .049 |
| Q3 (0.395 to <0.576) | 176 | 486 | 1.989 | 1.331–2.973 | .001 | 1.370 | 0.881–2.130 | .16 |
| Q4 (0.576 to <1) | 171 | 459 | 1.935 | 1.307–2.866 | .001 | 1.170 | 0.758–1.807 | .48 |
| 1 (ref) | 49 | 235 | 1.000 | – | 1.000 | – | ||
BB=Bice and Boxerman; Q=quartile; ref=reference category.
Note: Estimated odds ratios from a conditional (fixed-effects) logistic regression analysis.
a
Adjusted for sex, number of general practitioner consultations, previous hospital admission, and morbidities. For complete table, see Supplemental Table 5, http://www.annfammed.org/content/15/6/515/suppl/DC1.