Table 1. Distribution of contacted persons by tie and contact features.
| Category | Covariate | Frequency (%) |
| Relationships | School/workplace | 8,947 (36.9) |
| Household | 6,249 (25.8) | |
| Neither | 9,063 (37.3) | |
| Frequency of contact | Daily | 16,116 (66.5) |
| Weekly | 3,899 (16.1) | |
| Monthly | 1,657 (6.8) | |
| Less often | 1,505 (6.2) | |
| Never | 1,065 (4.4) | |
| Location | Home | 7,486 (30.9) |
| Workplace | 6,033 (24.9) | |
| School | 4,691 (19.3) | |
| Leisure | 1,758 (7.3) | |
| Public transportation | 379 (1.6) | |
| Others | 5,060 (20.9) | |
| Types of contact | Non-physical contact | 16,169 (67.0) |
| Physical contact | 7,966 (33.0) | |
| Distance from home | <1 km | 12,786 (52.7) |
| 1–9 km | 7,078 (29.2) | |
| 10–49 km | 3,558 (14.6) | |
| >50 km | 841 (3.5) | |
| Duration | <5 minutes | 4,526 (18.7) |
| 5–14 min. | 3,326 (13.7) | |
| 15–59 min. | 3,916 (16.1) | |
| 1–4 hours | 5,378 (22.2) | |
| >4 hours | 7,119 (29.3) |