Table 1.
OR | 95% CI | Cases (N) | Total (N)2 | Rate3 | Pop %4 | SR5 | |
---|---|---|---|---|---|---|---|
Gender | |||||||
Male | 1.0 | – | 7,214 | 26,507,814 | 326.6 | 86.3 | 322.3 |
Female | 2.4* | 2.26–2.48 | 2,436 | 4,207,436 | 694.8 | 13.7 | 758.7 |
χ21 | 1,266.6* | ||||||
Age at Army Entry | |||||||
< 21 | 0.7* | 0.68–0.76 | 6,471 | 19,095,671 | 406.6 | 62.2 | 330.3 |
21–24 | 1.0 | – | 2,139 | 7,531,739 | 340.8 | 24.5 | 460.8 |
25+ | 1.6* | 1.51–1.79 | 1,040 | 4,087,840 | 305.3 | 13.3 | 762.3 |
χ22 | 392.9* | ||||||
Current Age | |||||||
< 21 | 5.6* | 5.06–6.23 | 3,315 | 4,624,915 | 860.1 | 15.1 | 927.1 |
21–24 | 2.9* | 2.61–3.17 | 3,499 | 9,230,699 | 454.9 | 30.1 | 478.3 |
25–29 | 1.6* | 1.50–1.80 | 1,756 | 7,119,756 | 296.0 | 23.2 | 275.6 |
30–34 | 1.0 | – | 635 | 4,239,435 | 179.7 | 13.8 | 165.7 |
35–39 | 0.7* | 0.58–0.76 | 300 | 3,344,500 | 107.6 | 10.9 | 111.7 |
40+ | 0.5* | 0.40–0.57 | 145 | 2,155,945 | 80.7 | 7.0 | 79.8 |
χ25 | 1,832.5* | ||||||
Race/Ethnicity | |||||||
White | 1.0 | – | 6,808 | 18,358,008 | 445.0 | 59.8 | 424.3 |
Black | 0.7* | 0.63–0.71 | 1,415 | 6,972,415 | 243.5 | 22.7 | 281.3 |
Hispanic | 0.7* | 0.69–0.79 | 979 | 3,557,179 | 330.3 | 11.6 | 313.9 |
Asian | 0.7* | 0.60–0.76 | 286 | 1,217,486 | 281.9 | 4.0 | 286.3 |
Other | 1.0 | 0.83–1.13 | 162 | 610,162 | 318.6 | 2.0 | 400.9 |
χ24 | 245.4* | ||||||
Education | |||||||
< High School6 | 2.0* | 1.96–2.14 | 2,888 | 3,878,088 | 893.6 | 12.6 | 693.3 |
High School | 1.0 | – | 6,380 | 23,503,980 | 325.7 | 76.5 | 324.8 |
Some College | 0.7* | 0.62–0.83 | 191 | 1,704,591 | 134.5 | 5.5 | 237.1 |
≥ College | 0.6* | 0.52–0.70 | 191 | 1,628,591 | 140.7 | 5.3 | 194.9 |
χ23 | 1,076.7* | ||||||
Marital Status | |||||||
Never Married | 1.0 | 0.95–1.04 | 5,441 | 12,589,441 | 518.6 | 41.0 | 373.1 |
Currently Married | 1.0 | – | 3,974 | 16,814,774 | 283.6 | 54.7 | 384.1 |
Previously Married | 0.9 | 0.81–1.05 | 235 | 1,311,035 | 215.1 | 4.3 | 351.3 |
χ22 | 1.6 | ||||||
Total | – | – | 9,650 | 30,715,250 | 377.0 | 100 | – |
The sample of enlisted soldiers is a subset of the total sample (n = 193,617 person-months) that includes all Regular Army soldiers (i.e., excluding those in the U.S. Army National Guard and Army Reserve) with a suicide attempt in their administrative records during the years 2004–2009, plus a 1:200 stratified probability sample of all other active duty Regular Army person-months in the population exclusive of soldiers with a suicide attempt or other non-fatal suicidal event (e.g., suicidal ideation) and person-months associated with death (i.e., suicides, combat deaths, homicides, and deaths due to other injuries or illnesses). All records in the 1:200 sample were assigned a weight of 200 to adjust for the under-sampling of months not associated with suicide attempt. The analysis included a dummy predictor variable for calendar month and year to control for secular trends.
Total includes both cases (i.e., soldiers with a suicide attempt) and control person-months.
Rate per 100,000 person-years, calculated based on n1/n2, where n1 is the unique number of soldiers within each category and n2 is the annual number of person-years, not person-months, in the population (n=3.08 million).
Pop % = Population percent.
SR = Standardized rate.
< High School includes: General Educational Development credential (GED), home study diploma, occupational program certificate, correspondence school diploma, high school certificate of attendance, adult education diploma, and other non-traditional high school credentials.