Table 2.
First hospitalization rates and adjusted odds ratios for active-duty military personnel over a 1-year period enrolled in the Millennium Cohort Study 2004-2006 (N = 42896)*
| Hospitalization rate per 1,000 | Adjusted | 95% CI† | |
|---|---|---|---|
| Characteristic | (n = 1449) | OR† | |
| Sex | |||
| Male | 28.3 (890) | 1.00 | |
| Female | 48.8 (559) | 1.93 | 1.69-2.19 |
| Birth year | |||
| Pre-1960 | 44.2 (179) | 1.00 | |
| 1960-1969 | 37.2 (457) | 0.73 | 0.60-0.90 |
| 1970-1979 | 29.9 (374) | 0.47 | 0.38-0.59 |
| 1980 and later | 31.1 (439) | 0.46 | 0.36-0.60 |
| Race/ethnicity | |||
| White, non-Hispanic | 33.2 (955) | 1.00 | |
| Black, Non-Hispanic | 34.9 (208) | 1.06 | 0.90-1.24 |
| Other | 35.2 (286) | 1.10 | 0.95-1.26 |
| Education level | |||
| High school diploma or less | 34.9 (989) | 1.00 | |
| Some college | 35.0 (212) | 0.75 | 0.62-0.89 |
| Bachelor's degree | 27.6 (126) | 0.65 | 0.51-0.82 |
| Graduate school | 30.9 (122) | 0.62 | 0.44-0.85 |
| Marital status | |||
| Never married | 31.6 (514) | 1.00 | |
| Married | 34.3 (839) | 1.03 | 0.89-1.19 |
| Divorced, widowed, separated | 44.3 (96) | 1.00 | 0.7-1.29 |
| Military pay grade | |||
| Enlisted | 34.6 (1,270) | 1.00 | |
| Officer | 28.8 (179) | 1.08 | 0.82-1.43 |
| Service branch | |||
| Army | 41.4 (697) | 1.00 | |
| Navy and Coast Guard | 31.6 (302) | 0.69 | 0.59-0.80 |
| Marine Corps | 18.6 (53) | 0.49 | 0.35-0.66 |
| Air Force | 29.2 (402) | 0.68 | 0.59-0.78 |
| Military occupation | |||
| Combat specialists | 32.1 (251) | 1.00 | |
| Electronic equipment repair | 28.8 (122) | 0.89 | 0.70-1.12 |
| Communications/intelligence | 33.2 (138) | 0.90 | 0.72-1.13 |
| Health care | 45.2 (190) | 1.09 | 0.88-1.35 |
| Other technical and allied | 33.8 (45) | 0.99 | 0.70-1.37 |
| Functional support and admin | 34.6 (272) | 0.84 | 0.69-1.02 |
| Electrical/mechanical equip. repair | 33.0 (234) | 1.02 | 0.83-1.24 |
| Craft workers | 18.3 (22) | 0.54 | 0.32-0.84 |
| Service and supply | 38.2 (148) | 1.01 | 0.81-1.26 |
| Students, trainees, and other | 24.2 (27) | 0.91 | 0.59-1.36 |
| Body mass index (BMI) | |||
| Underweight | 56.5 (17) | 1.00 | |
| Healthy weight | 31.8 (483) | 0.70 | 0.42-1.26 |
| Overweight | 32.8 (641) | 0.78 | 0.47-1.42 |
| Obese | 42.7 (224) | 1.00 | 0.59-1.83 |
| Missing data | (84) | ||
| Smoking status | |||
| Nonsmoker | 31.3 (704) | 1.00 | |
| Past smoker | 36.5 (201) | 1.09 | 0.92-1.29 |
| Current smoker | 36.7 (488) | 1.20 | 1.05-1.36 |
| Missing data | (56) | ||
| Alcohol-related problems‡ | |||
| No | 33.8 (1,302) | 1.00 | |
| Yes | 33.7 (147) | 1.02 | 0.84-1.24 |
*Excludes hospitalizations for complications of pregnancy, childbirth, and the puerperium (ICD-9-CM 630-676).
†ORs and associated confidence intervals from multiple logistic regression were adjusted for sex, age, education, marital status, race/ethnicity, pay grade, branch of service, occupation, BMI, smoking status, and problem drinking. CIs that exclude 1.00 were significant at the p < 0.05 level.
‡Alcohol-related problems were defined by endorsement of any of the following that occurred more than once during the past year: (a) you drank alcohol even after a doctor suggested stopping due to health problems; (b) you drank alcohol, were high from alcohol, or were hung over while you were working, going to school, or taking care of children or other responsibilities; (c) you missed or were late for work, school, or other activities because you were drinking or hung over; (d) you had a problem getting along with people while you were drinking; (e) you drove a car after having several drinks or after drinking too much. No = none reported, Yes = one or more reported.