Table 1.
Participant Demographics by Vaccination Status
| Study Variable | Unvaccinated (N = 4474) | Vaccinated (N = 4177) | Crossover Vaccinated (N = 3821) | All Vaccinated (N = 7998) | All Randomized (N = 8651) |
|---|---|---|---|---|---|
| Site (District)—N (%) | |||||
| COMAHS Library (Western Rural) | 993 (22.2) | 900 (21.5) | 849 (22.2) | 1749 (21.9) | 1893 (21.9) |
| Connaught Hospital (Western Urban) | 1707 (38.2) | 1546 (37.0) | 1376 (36.0) | 2922 (36.5) | 3253 (37.6) |
| Port Loko Government Hospital (Port Loko no. 1) | 439 (9.8) | 425 (10.2) | 400 (10.5) | 825 (10.3) | 864 (10.0) |
| Saint John of God Hospital, Lunsar (Port Loko no. 2) | 204 (4.6) | 193 (4.6) | 172 (4.5) | 365 (4.6) | 397 (4.6) |
| Saint John of God Health Center, Kaffu Bullom (Port Loko no. 3) | 151 (3.4) | 151 (3.6) | 139 (3.6) | 290 (3.6) | 302 (3.5) |
| Holy Spirit Hospital, Makeni (Bombali) | 612 (13.7) | 596 (14.3) | 546 (14.3) | 1142 (14.3) | 1208 (14.0) |
| Magburaka Government Hospital (Tonkolili) | 368 (8.2) | 366 (8.8) | 339 (8.9) | 705 (8.8) | 734 (8.5) |
| Age (years) | |||||
| Median [range] | 30.8 [18.0–79.5] | 30.6 [18.1–78.0] | 31.0 [18.0–79.5] | 30.8 [18.0– 79.5] | 30.7 [18.0– 79.5] |
| Gender—N (%) | |||||
| Female | 1813 (40.5) | 1594 (38.2) | 1360 (35.6) | 2954 (36.9) | 3407 (39.4) |
| Male | 2661 (59.5) | 2583 (61.8) | 2461 (64.4) | 5044 (63.1) | 5244 (60.6) |
| Primary Occupation—N (%) | |||||
| Nursea | 1527 (34.1) | 1350 (32.3) | 990 (25.9) | 2340 (29.3) | 2877 (33.3) |
| Allied health professionalsb | 77 (1.7) | 72 (1.7) | 58 (1.5) | 130 (1.6) | 149 (1.7) |
| Doctor | 12 (0.3) | 13 (0.3) | 7 (0.2) | 20 (0.3) | 25 (0.3) |
| Pharmacist | 20 (0.4) | 20 (0.5) | 20 (0.5) | 40 (0.5) | 40 (0.5) |
| Community health worker | 93 (2.1) | 85 (2.0) | 68 (1.8) | 153 (1.9) | 178 (2.1) |
| Laboratory worker | 143 (3.2) | 130 (3.1) | 141 (3.7) | 271 (3.4) | 273 (3.2) |
| Frontline Ebola response workerc | 2125 (47.5) | 2041 (48.9) | 1346 (35.2) | 3387 (42.3) | 4166 (48.2) |
| Surveillance worker | 258 (5.8) | 242 (5.8) | 170 (4.4) | 412 (5.2) | 500 (5.8) |
| Other/Not reported | 219 (4.9) | 224 (5.4) | 128 (3.3) | 352 (4.4) | 443 (5.1) |
| Not currently working in a health facility | 0 | 0 | 893 (23.4) | 893 (11.2) | 0 |
| Facility Type—N (%) | |||||
| Ebola Facility | 1553 (34.7) | 1436 (34.4) | 688 (18.0) | 2124 (26.6) | 2989 (34.6) |
| Hospital | 1784 (39.9) | 1659 (39.7) | 1369 (35.8) | 3028 (37.9) | 3443 (39.8) |
| Community/field/clinic | 809 (18.1) | 790 (18.9) | 842 (22.0) | 1632 (20.4) | 1599 (18.5) |
| Other/Not reported | 328 (7.3) | 292 (7.0) | 922 (24.1) | 1214 (15.2) | 620 (7.2) |
| Education—N (%) | |||||
| None | 369 (8.2) | 371 (8.9) | 340 (8.9) | 711 (8.9) | 740 (8.6) |
| Primary | 222 (5.0) | 229 (5.5) | 191 (5.0) | 420 (5.3) | 451 (5.2) |
| Secondary | 1977 (44.2) | 1846 (44.2) | 1778 (46.5) | 3624 (45.3) | 3823 (44.2) |
| Tertiary | 1884 (42.1) | 1711 (41.0) | 1504 (39.4) | 3215 (40.2) | 3595 (41.6) |
| Other/Not reported | 22 (0.5) | 20 (0.5) | 8 (0.2) | 28 (0.4) | 42 (0.5) |
| Perceived Risk of Ebola Infection—N (%) | |||||
| Highd | 2995 (66.9) | 2811 (67.3) | 927 (24.3) | 3738 (46.7) | 5806 (67.1) |
| Average | 773 (17.3) | 760 (18.2) | 724 (18.9) | 1484 (18.6) | 1533 (17.7) |
| Lowe | 705 (15.8) | 606 (14.5) | 2170 (56.8) | 2776 (34.7) | 1311 (15.2) |
| Not Reported | 1 (0.0) | 0 | 0 | 0 | 1 (0.0) |
Abbreviation: COMAHS, College of Medicine and Allied Health Sciences.
aIncludes nurse, community health nurse, maternal-child health aide, midwife, nurse aide, nursing student, vaccinator.
bIncludes dentist, medical counselor, nutritionist, physiotherapist.
cIncludes contact tracers, ambulance crew, burial workers, swabbers (took post mortem skin/mucosal swabs for Ebola testing on all deceased people).
dParticipants who responded “very high” or “high” are included in the high category.
eParticipants who responded “very low” or “low” are included in the low category.