Table 7.
Association between individual-level changes in practices and knowledge, and the cumulative incidence of seroconversion among 2,211 individuals providing both serum at the baseline and pre-randomization 18-month follow-up visits in 60 villages of Burkina Faso
| SC | ||||
|---|---|---|---|---|
| Variable | Total | n, SC | CIR (95% CI) | |
| Change, eating pork | Change, improved | 231 | 5 (2.1%) | 0.57 (0.23; 1.43) |
| Change, deteriorated | 57 | 3 (5.0%) | 1.19 (0.38; 3.75) | |
| No change, kept good | 567 | 14 (2.4%) | 0.46 (0.24; 0.89)† | |
| No change, kept bad | 1,170 | 47 (3.9%) | Ref | |
| Change, location eating pork | Change, improved | 264 | 13 (4.7%) | 1.06 (0.35; 3.20) |
| Change, deteriorated | 46 | 2 (4.2%) | 1.00 (0.19; 5.26) | |
| No change, kept good | 759 | 28 (3.6%) | 0.77 (0.27; 2.18) | |
| No change, kept bad | 98 | 4 (3.9%) | Ref | |
| Change, use toilet | Change, improved | 271 | 7 (2.5%) | 0.54 (0.22; 1.35) |
| Change, deteriorated | 74 | 2 (2.6%) | 0.83 (0.20; 3.36) | |
| No change, kept good | 201 | 7 (3.4%) | 0.91 (0.40; 2.04) | |
| No change, kept bad | 1,474 | 53 (3.5%) | Ref | |
| Change, having pigs | Change, improved | 154 | 5 (3.1%) | 0.74 (0.29; 1.91) |
| Change, deteriorated | 505 | 19 (3.6%) | 0.91 (0.50; 1.64) | |
| No change, kept good | 809 | 21 (2.5%) | 0.41 (0.22; 0.79)‡ | |
| No change, kept bad | 557 | 24 (4.1%) | Ref | |
| Change, knowledge on where to find cyst in live pig (under the tongue) | Change, improved | 121 | 3 (2.4%) | 1.59 (0.17; 15.0) |
| Change, deteriorated | 96 | 5 (5.0%) | 3.71 (0.44; 31.21) | |
| No change, kept good | 774 | 36 (4.4%) | 2.86 (0.39; 20.89) | |
| No change, kept bad | 58 | 1 (1.7%) | Ref | |
| Change, knowledge on how pig acquires CC (eating human feces)* | Change, improved | 24 | 1 (4.0%) | 0.98 (0.14; 6.88) |
| Change, deteriorated | 55 | 3 (5.2%) | 1.27 (0.41; 3.99) | |
| No change, kept good | 2 | 0 (0.0%) | – | |
| No change, kept bad | 968 | 41 (4.1%) | Ref | |
| Change, knowledge on how to recognize tapeworm infection (see worm in feces)* | Change, improved | 1 | 0 (0.0%) | – |
| Change, deteriorated | 500 | 15 (2.9%) | 0.81 (0.42; 1.57) | |
| No change, kept good | 1 | 0 (0.0%) | – | |
| No change, kept bad | 508 | 19 (3.6%) | Ref | |
| Change, knowledge on how humans contract a tapeworm (eating undercooked pork)* | Change, improved | 16 | 0 (0.0%) | – |
| Change, deteriorated | 38 | 2 (5.0%) | 1.54 (0.38; 6.22) | |
| No change, kept good | – | – | – | |
| No change, kept bad | 956 | 32 (3.2%) | Ref | |
CC = cysticercosis; CIR = cumulative incidence ratio; Ref = reference; SC = seroconversion; 95% CI = 95% Wald confidence interval for fixed effects in mixed models with village as random variable and type of concession, sampling interval and the variable of interest as fixed effects.
*
Because of incomplete classes, or too many missing values for these variables, no mixed models were run for these variables, CIR with 95% CI were provided for complete classes only.
†
P < 0.05.
‡
P < 0.01.