Table 1 Descriptive analysis, χ.2 test for specified proportions, and relative risk (RR) for some variables considered in this study. Brazilian Federal District, 2005 – 2014
| Â | Parameter | Frequency | Percent | Test percent | p* | RR |
|---|---|---|---|---|---|---|
Day of month (n = 344) | 1—10 | 121 | 35.17 | 32.88 | 0.545 | 1.07 |
11—20 | 114 | 33.14 | 32.88 | 1.01 | ||
21—31 | 109 | 31.69 | 34.24 | 0.93 | ||
Day of week (n = 344) | Weekday | 207 | 60.17 | 71.43 |  < 0.0001 | 0.84 |
Weekend | 137 | 39.83 | 28.57 | 1.39 | ||
Season (n = 344) | Spring | 101 | 29.36 | 25.00 | 0.264 | 1.17 |
Summer | 76 | 22.09 | 25.00 | 0.88 | ||
Autumn | 85 | 24.71 | 25.00 | 0.99 | ||
Winter | 82 | 23.84 | 25.00 | 0.95 | ||
Period (n = 344) | Day | 150 | 43.60 | 50.00 | 0.018 | 0.87 |
Night | 194 | 56.40 | 50.00 | 1.13 | ||
Place (n = 325) | Own residence | 240 | 73.85 | 50.00 |  < 0.0001 | 1.48 |
Others place | 85 | 26.15 | 50.00 | 0.52 | ||
Age group (n = 344) | Adolescent | 16 | 4.65 | 12.57 |  < 0.0001 | 0.37 |
Young adult | 121 | 35.17 | 28.86 | 1.22 | ||
Adult | 191 | 55.52 | 49.14 | 1.13 | ||
Elderly | 16 | 4.65 | 9.44 | 0.49 | ||
Sex (n = 344) | Male | 288 | 83.72 | 47.87 |  < 0.0001 | 1.75 |
Female | 56 | 16.28 | 52.13 | 0.31 | ||
Level of education (n = 125) | Illiterate | 1 | 0.80 | 11.91 |  < 0.0001 | 0.07 |
Elementary School | 42 | 33.60 | 33.03 | 1.02 | ||
High school | 53 | 42.40 | 28.68 | 1.48 | ||
Higher education | 29 | 23.20 | 26.37 | 0.88 | ||
Marital status (n = 227) | Married | 95 | 41.85 | 44.87 | 0.360 | 0.93 |
Not married | 132 | 58.15 | 55.13 | 1.05 | ||
Previous suicide attempt? (n = 74) | Yes | 69 | 93.24 | 50.00 |  < 0.0001 | 1.86 |
No | 5 | 6.76 | 50.00 | 0.14 | ||
Recent behavior change? (n = 110) | Yes | 97 | 88.18 | 50.00 |  < 0.0001 | 1.76 |
No | 13 | 11.82 | 50.00 | 0.24 | ||
What has changed? (n = 98) | Became aggressive | 32 | 32.65 | 33.33 |  < 0.0001 | 0.98 |
Became depressed | 51 | 52.04 | 33.33 | 1.56 | ||
Became unstable | 15 | 15.31 | 33.33 | 0.46 | ||
Skin color (n = 272) | White | 49 | 18.01 | 41.86 |  < 0.0001 | 0.43 |
Black/pardo | 223 | 81.99 | 58.14 | 1.41 | ||
BMIa (n = 301) | Underweight | 19 | 6.31 | 25.00 |  < 0.0001 | 0.25 |
Ideal weight range | 179 | 59.47 | 25.00 | 2.38 | ||
Overweight | 79 | 26.25 | 25.00 | 1.05 | ||
Obesity | 24 | 7.97 | 25.00 | 0.32 |