Table 5.
The explanatory variables are significantly associated with VI.
| Variables that were found to be associated with VI | |
|---|---|
| Variable | The odds ratios of VI |
| U.S. Region | |
| Northeast (ref) | 1.00 |
| Midwest | 1.03 |
| South | 1.61 |
| West | 1.1 |
| General health perception | |
| Excellent/very good (ref) | 1.00 |
| Good | 1.52 |
| Fair/poor | 2.92 |
| Employment status | |
| Student (ref) | 1.00 |
| Employed | 1.51 |
| Unemployed | 2.86 |
| Homemaker | 1.85 |
| Retired | 1.77 |
| Unable to work | 3.64 |
| Income status | |
| < 35,000 USD | 1.68 |
| 35–75,000 USD | 1.16 |
| >75,000 USD (ref) | 1.00 |
| Age (years) | |
| 40–44 (ref) | 1.00 |
| 45–49 | 2.07 |
| 50–54 | 2.31 |
| 55–59 | 1.97 |
| 60–64 | 1.70 |
| 65–69 | 1.83 |
| 70–74 | 1.75 |
| 75–79 | 2.19 |
| 80+ | 3.60 |
| < 40 | 1.13 |
| Health insurance source | |
| Military (ref) | 1.00 |
| No plan | 2.52 |
| Through employer | 0.86 |
| Personal plan | 1.09 |
| State program | 1.41 |
| Other sources | 1.64 |
The reference groups are marked and have an odds ratio of 1.