Table 1. Characteristics of the population (n = 61,523), frequency of unprotected sexual activity and 95% confidence interval, according to socioeconomic and demographic variables, Brazil, 2019.
| Variable | Sample | Unprotected sexual activity | |
|---|---|---|---|
| n | % (95%CIa) | % (95%CIa) | |
| Brazilian macro-region | |||
| North | 12,458 | 8.0 (7.7;8.4) | 71.6 (69.9;73.2) |
| Northeast | 20,440 | 25.5 (24.9;26.2) | 78.0 (77.1;78.8) |
| Southeast | 13,179 | 43.2 (42.2;44.2) | 76.3 (75.1;77.6) |
| South | 8,032 | 15.3 (14.8;15.9) | 79.4 (78.1;80.7) |
| Midwest | 7,414 | 8.0 (7.7;8.3) | 77.4 (75.7;79.1) |
| Zone of residence | |||
| Urban | 47,137 | 86.2 (85.8;86.7) | 76.2 (75.5;76.9) |
| Rural | 14,386 | 13.8 (13.3;14.2) | 81.6 (80.4;82.6) |
| Sex | |||
| Male | 33,197 | 52.2 (51.6;52.9) | 75.2 (74.4;76.1) |
| Female | 28,326 | 47.8 (47.1;48.5) | 78.8 (77.9;79.6) |
| Age group (in years) | |||
| 18-24 | 6,355 | 14.6 (13.9;15.2) | 57.7 (55.4;59.9) |
| 25-39 | 22,806 | 36.2 (35.5;36.8) | 76.1 (75.0;77.1) |
| 40-59 | 24,453 | 38.2 (37.5;38.9) | 81.8 (80.9;82.7) |
| ≥ 60 | 7,909 | 11.0 (10.6;11.4) | 88.3 (87.1;89.4) |
| Race/skin color | |||
| White | 22,091 | 43.0 (42.2;43.9) | 78.2 (77.2;79.1) |
| Black | 6,948 | 11.5 (11.0;11.9) | 74.5 (72.6;76.4) |
| Asian | 449 | 0.8 (0.7;0.9) | 73.8 (66.7;79.8) |
| Mixed race | 31,562 | 44.2 (43.5;45.0) | 76.5 (75.6;77.4) |
| Indigenous | 466 | 0.5 (0.4;0.7) | 69.1 (55.5;80.0) |
| Marital status | |||
| Single/widowed/divorced | 33,444 | 50.4 (49.6;51.2) | 66.5 (65.5;67.5) |
| Married | 28,079 | 49.6 (48.8;50.4) | 87.5 (86.9;88.2) |
| Schooling (in years of study) | |||
| More than 8 | 36,560 | 63.8 (63.0;64.6) | 74.1 (73.3;75.0) |
| Up to 8 | 24,963 | 36.2 (35.4;37.0) | 81.9 (81.0;82.7) |
| Per capita household income (in quintiles) | |||
| 1 (poorest) | 10,306 | 12.8 (12.4;13.3) | 77.1 (75.7;78.5) |
| 2 | 10,622 | 16.4 (15.9;17.0) | 76.9 (75.3;78.4) |
| 3 | 12,140 | 20.7 (20.0;21.3) | 77.0 (75.6;78.4) |
| 4 | 12,368 | 22.4 (21.8;23.0) | 76.6 (75.2;78.0) |
| 5 (richest) | 16,074 | 27.7 (26.8;28.6) | 77.1 (75.8;78.3) |
a) 95%CI: 95% confidence interval.