Table 1.
Comparison of demographic characteristics of the study population between the before- and after-intervention periods
| Factors | All | Before-intervention 2009-2010 |
After-intervention 2012-2013 |
P-value | |||
|---|---|---|---|---|---|---|---|
| N | % | N | % | N | % | ||
| All | 127,866 | 100.0 | 65,504 | 100.0 | 62,362 | 100.0 | |
| Gender | 0.0378 | ||||||
| Female | 41,333 | 32.3 | 21,348 | 32.6 | 19,985 | 32.0 | |
| Male | 86,533 | 67.7 | 44,156 | 67.4 | 42,377 | 68.0 | |
| Age, years | <0.001 | ||||||
| 0-9 | 1294 | 1.0 | 714 | 1.1 | 580 | 0.9 | |
| 10-19 | 3183 | 2.5 | 1819 | 2.8 | 1364 | 2.2 | |
| 20-29 | 9621 | 7.5 | 5627 | 8.6 | 3994 | 6.4 | |
| 30-39 | 14,349 | 11.2 | 7807 | 11.9 | 6542 | 10.5 | |
| 40-49 | 20,375 | 15.9 | 10,909 | 16.7 | 9466 | 15.2 | |
| 50-59 | 22,188 | 17.4 | 10,832 | 16.5 | 11,356 | 18.2 | |
| 60-69 | 18,249 | 14.3 | 9727 | 14.8 | 8522 | 13.7 | |
| 70- | 38,607 | 30.2 | 18,069 | 27.6 | 20,538 | 32.9 | |
| Residence | 0.0217 | ||||||
| Metropolis | 48,578 | 38.0 | 25,085 | 38.3 | 23,493 | 37.7 | |
| Non-metropolis | 79,288 | 62.0 | 40,419 | 61.7 | 38,869 | 62.3 | |
| Season | <0.001 | ||||||
| MAR-MAY | 33,502 | 26.2 | 17,160 | 26.2 | 16,342 | 26.2 | |
| JUN-AUG | 32,923 | 25.7 | 17,424 | 26.6 | 15,499 | 24.9 | |
| SEP-NOV | 32,073 | 25.1 | 16,356 | 25.0 | 15,717 | 25.2 | |
| DEC-FEB | 29,368 | 23.0 | 14,564 | 22.2 | 14,804 | 23.7 | |
| Weekday | 0.4011 | ||||||
| Sunday | 17,478 | 13.7 | 9027 | 13.8 | 8451 | 13.6 | |
| Monday | 19,268 | 15.1 | 9919 | 15.1 | 9349 | 15.0 | |
| Tuesday | 18,560 | 14.5 | 9410 | 14.4 | 9150 | 14.7 | |
| Wednesday | 18,437 | 14.4 | 9354 | 14.3 | 9083 | 14.6 | |
| Thursday | 18,092 | 14.1 | 9310 | 14.2 | 8782 | 14.1 | |
| Friday | 18,136 | 14.2 | 9285 | 14.2 | 8851 | 14.2 | |
| Saturday | 17,895 | 14.0 | 9199 | 14.0 | 8696 | 13.9 | |
| Occupation | <0.001 | ||||||
| White collar | 14,611 | 11.4 | 7693 | 11.7 | 6918 | 11.1 | |
| Blue collar | 39,449 | 30.9 | 19,580 | 29.9 | 19,869 | 31.9 | |
| Unemployeda | 73,806 | 57.7 | 38,231 | 58.4 | 35,575 | 57.0 | |
| Marital status | <0.001 | ||||||
| Unmarried | 28,516 | 22.3 | 15,062 | 23.0 | 13,454 | 21.6 | |
| Married | 61,820 | 48.3 | 31,963 | 48.8 | 29,857 | 47.9 | |
| Divorced | 16,454 | 12.9 | 9168 | 14.0 | 7286 | 11.7 | |
| Deceased | 20,753 | 16.2 | 9152 | 14.0 | 11,601 | 18.6 | |
| Unknown | 323 | 0.3 | 159 | 0.2 | 164 | 0.3 | |
| Education level | <0.001 | ||||||
| Elementary school and below | 48,501 | 37.9 | 25,230 | 38.5 | 23,271 | 37.3 | |
| Middle school | 19,284 | 15.1 | 9905 | 15.1 | 9379 | 15.0 | |
| High school | 38,445 | 30.1 | 19,740 | 30.1 | 18,705 | 30.0 | |
| College and above | 20,215 | 15.8 | 10,145 | 15.5 | 10,070 | 16.1 | |
| Unknown | 1421 | 1.1 | 484 | 0.7 | 937 | 1.5 | |
| Intent | <0.001 | ||||||
| Accident | 54,313 | 42.5 | 27,073 | 41.3 | 27,240 | 43.7 | |
| Suicide | 59,713 | 46.7 | 31,051 | 47.4 | 28,662 | 46.0 | |
| Homicide | 2427 | 1.9 | 1315 | 2.0 | 1112 | 1.8 | |
| Undetermined | 11,413 | 8.9 | 6065 | 9.3 | 5348 | 8.6 | |
| Pesticide | <0.001 | ||||||
| Not-associated | 117,434 | 91.8 | 59,129 | 90.3 | 58,305 | 93.5 | |
| Associated | 10,432 | 8.2 | 6375 | 9.7 | 4057 | 6.5 | |
aUnemployed group includes students, housewives, military personnel, and unemployed persons