Demographic characteristics of study participants
| CHI participants (n=61) | Controls (n=156) | |
| Participation in trial for | ||
| Schistosomiasis (n=17) | 16 (26%) | N/A |
| Hookworm (n=26) | 22 (36%) | |
| Malaria (n=23) | 23 (38%) | |
| Sex | ||
| Male | 24 (39%) | 35 (22%) |
| Female | 37 (61%) | 35 (22%) |
| Missing | 23 (15%) | |
| Age | ||
| <18 years | 0 | 3 (2%) |
| 18 to 24 years | 38 (62%) | 145 (93%) |
| 25 to 30 years | 11 (18%) | 8 (5%) |
| >30 years | 12 (20%) | 0 |
| Employment | ||
| Student | 41 (67%) | 156 (100%) |
| Working | 19 (31%) | |
| Other | 1 (2%) | |
| Previously participated in research | ||
| Yes | 17 (28%) | N/A |
| No | 44 (72%) | |
| Employed in healthcare or healthcare-related study? | ||
| Yes | 32 (53%) | 126 (81%) |
| No | 29 (47%) | 30 (19%) |
| Would you participate in one of these controlled human infection trials? | ||
| Yes, both | N/A | 9 (6%) |
| Yes, only malaria | 35 (22%) | |
| Yes, only hookworm | 4 (3%) | |
| No | 108 (69%) |
CHI, controlled human infection.