Table 2.
Adjusted* polychotomous logistic regression modeling for odds of early refusal and early consent
| Early Refusal† vs. Late/Non-response‡ | Early Consent§ vs. Late/Non-response‡ | |||
| OR¶ | 95% CI¶ | OR¶ | 95% CI¶ | |
| Sex | ||||
| Male# | -- | -- | -- | -- |
| Female | 1.14 | (0.94, 1.39) | 1.62 | (1.56, 1.68) |
| Age | ||||
| Per year | 1.03 | (1.02, 1.04) | 1.04 | (1.04, 1.04) |
| Education | ||||
| No high school diploma# | -- | -- | -- | -- |
| High school graduate | 1.25 | (0.79, 1.95) | 1.08 | (1.02, 1.15) |
| Some college | 1.93 | (1.21, 3.09) | 1.30 | (1.21, 1.39) |
| College graduate | 2.42 | (1.51, 3.87) | 1.51 | (1.41, 1.62) |
| Advanced degree | 4.03 | (2.48, 6.55) | 1.74 | (1.61, 1.89) |
| Marital status | ||||
| Married# | -- | -- | -- | -- |
| Not married | 0.79 | (0.66, 0.94) | 0.86 | (0.83, 0.89) |
| Race/ethnicity | ||||
| White non-Hispanic# | -- | -- | -- | -- |
| Black non-Hispanic | 0.44 | (0.33, 0.59) | 0.49 | (0.47, 0.52) |
| Hispanic | 0.67 | (0.46, 0.96) | 0.69 | (0.64, 0.73) |
| Asian/Pacific Islander | 1.18 | (0.89, 1.56) | 0.75 | (0.71, 0.80) |
| American Indian | 0.85 | (0.38, 1.91) | 0.87 | (0.75, 1.01) |
| Other | 0.54 | (0.22, 1.30) | 0.72 | (0.63, 0.82) |
| Service branch | ||||
| Army# | -- | -- | -- | -- |
| Air Force | 1.88 | (1.52, 2.32) | 0.79 | (0.76, 0.82) |
| Navy | 1.96 | (1.55, 2.46) | 0.92 | (0.88, 0.96) |
| Marine Corps | 0.97 | (0.61, 1.54) | 0.90 | (0.84, 0.96) |
| Coast Guard | 1.69 | (0.89, 3.23) | 0.91 | (0.80, 1.03) |
| Duty status | ||||
| Active duty# | -- | -- | -- | -- |
| Reserve/National Guard | 1.24 | (1.05, 1.46) | 1.10 | (1.06, 1.13) |
| Previous deployment status | ||||
| Non-deployed# | -- | -- | -- | -- |
| Deployed | 0.84 | (0.70, 1.01) | 1.05 | (1.01, 1.09) |
| Occupational category | ||||
| Electrical/mechanical# | -- | -- | -- | -- |
| Combat specialists | 1.41 | (1.06, 1.87) | 1.02 | (0.97, 1.07) |
| Electronic equipment repair | 1.45 | (1.05, 2.01) | 1.13 | (1.07, 1.21) |
| Communications/intelligence | 1.13 | (0.77, 1.68) | 1.13 | (1.05, 1.21) |
| Health care specialists | 1.04 | (0.73, 1.49) | 1.16 | (1.09, 1.24) |
| Other technical & allied specialists | 0.98 | (0.53, 1.81) | 1.20 | (1.09, 1.32) |
| Functional support specialists | 1.51 | (1.14, 2.01) | 1.12 | (1.06, 1.18) |
| Craft workers | 1.23 | (0.77, 1.96) | 1.04 | (0.95, 1.14) |
| Service & supply handlers | 1.19 | (0.83, 1.73) | 1.06 | (0.99, 1.12) |
| Trainees, other | 1.78 | (1.17, 2.72) | 1.05 | (0.97, 1.14) |
* Adjusted for all variables listed.
† Early refusers are invitees who communicated their unwillingness to participate in the study prior to 01 September 2001.
‡ Late/non-responders are invitees who responded after 01 September 2001 or failed to respond in any manner.
§ Early consenters are invitees who completed an online or paper survey prior to 01 September 2001.
¶ OR = adjusted odds ratio; CI = 95% confidence interval.
# Reference category.