Table 3.
Bivariate probit model of awareness and acceptability of HPV vaccine (N = 742)
| Equation: Aware of HPV vaccine |
Equation: Would have daughter get HPV vaccine |
|||
|---|---|---|---|---|
| Coefficient | (95% C.I.) | Coefficient | (95% C.I.) | |
| Aware of HPV vaccine | - | 1.384** | (0.725, 2.044) | |
| Age group | ||||
| 18-34 | Reference | Reference | ||
| 35-39 | 0.056 | (–0.468, 0.579) | –0.164 | (–0.568, 0.239) |
| 40-44 | 0.123 | (–0.455, 0.701) | –0.211 | (–0.582, 0.161) |
| 45+ | –0.255 | (–0.778, 0.267) | 0.011 | (–0.316, 0.337) |
| Race/ethnicity | ||||
| Non-Hispanic White | Reference | Reference | ||
| Non-Hispanic Black | –0.410 | (–0.935, 0.114) | –0.258 | (–0.738, 0.222) |
| Hispanic | –0.401 | (–1.097, 0.295) | 0.177 | (–0.391, 0.746) |
| Other non-Hispanic | –0.680† | (–1.416, 0.057) | –0.224 | (–0.894, 0.445) |
| Household income | ||||
| $75,000 or more | Reference | Reference | ||
| $50,000 - < $75,000 | 0.424 | (–0.190, 1.037) | –0.300 | (–0.718, 0.118) |
| $20,000 - < $50,000 | –0.074 | (–0.680, 0.533) | 0.130 | (–0.307, 0.567) |
| Less than $20,000 | 0.142 | (–0.521, 0.806) | 0.177 | (–0.438, 0.792) |
| Education | ||||
| College graduate | Reference | Reference | ||
| Some college | 0.202 | (–0.284, 0.688) | 0.025 | (–0.338, 0.388) |
| High school graduate | –0.306 | (–0.881, 0.269) | 0.147 | (–0.249, 0.543) |
| Less than high school | –0.801* | (–1.591, –0.012) | 0.542† | (–0.031, 1.115) |
| Having any health insurance | 0.372 | (–0.110, 0.854) | –0.232 | (–0.698, 0.234) |
| Having a regular health care provider | 0.010 | (–0.394, 0.414) | 0.163 | (–0.196, 0.523) |
| Past medical history of cancer | 0.594 | (–0.528, 1.716) | 0.066 | (–0.412, 0.544) |
| Family history of cancer | 0.189 | (–0.213, 0.591) | 0.073 | (–0.220, 0.366) |
| Self-rated health status | ||||
| Excellent | Reference | Reference | ||
| Very good | 0.324 | (–0.412, 1.059) | 0.154 | (–0.259, 0.567) |
| Good | 0.006 | (–0.738, 0.751) | 0.436* | (0.005, 0.868) |
| Fair | 0.124 | (–0.726, 0.973) | 0.223 | (–0.279, 0.726) |
| Poor | 0.675 | (–0.402, 1.753) | –0.069 | (–1.048, 0.909) |
| Instrumental variables | ||||
| Heard about test for lung cancer | 0.697* | (0.174, 1.219) | - | |
| Heard about clinical trials | 0.362† | (–0.015, 0.740) | - | |
| Constant | 0.506 | (–0.531, 1.542) | –1.005* | (–1.881, –0.129) |
| Correlation (ρ) | –0.689* | (–0.927, –0.060) | ||
Notes: †p < 0.10, *p < 0.05, **p < 0.01. A set of dummy variables for survey regional division in the 2007 HINTS was included in the estimation but their coefficients are not presented here.