Table 2. - Association between apparent sociodemographic characteristics and agreement to participate in the study among drivers who fulfilled the inclusion criteria (n = 309).
| Participation agreement | ||||
|---|---|---|---|---|
|
|
||||
| Variable | Total (n = 309) | Yes (n = 179) | No (n = 130) | p-value |
| Apparent age | ||||
| 18 to 29 years | 97 (33.9) | 69 (38.5) | 28 (26.2) | 0.068 |
| 30 to 59 years | 178 (62.2) | 105 (58.7) | 73 (68.2) | |
| 60 years or above | 11 (3.8) | 5 (2.8) | 6 (5.6) | |
| Sex (male) | 245 (85.7) | 159 (88.8) | 86 (80.4) | 0.072 |
| Breathalyzer result (mg/L of breath) | ||||
| Zero (< 0.04) | 80 (25.9) | 55 (30.7)* | 25 (19.2)* | < 0.001 |
| Administrative infraction (0.05 to 0.34) | 31 (10) | 25 (14) | 6 (4.6) | |
| Crime (> 0.34) | 5 (1.6) | 5 (2.8) | 0 (0) | |
| Refused testing | 140 (45.3) | 66 (36.9)* | 74 (56.9)* | |
| Not filled out by traffic agent† | 53 (17.2) | 28 (15.6) | 25 (19.2) | - |
Data expressed as absolute and relative frequencies, n (%), and compared using the chi-square test.
* Adjusted residual > |2|.
† This field was not filled out in 34.3% of the forms. For drivers who agreed to participate in the study, these data were obtained during the interview.