Table 3.
Multivariate analysis (focal models) of socio-cultural determinants of anticipated oral cholera vaccine acceptance at the high price (US$ 8·4) and assessment of models
| Focal modelsa | Coefficient (95% CI)b | P valuec | Intd | Δ(AICc)e |
|---|---|---|---|---|
| Patterns of distress: somatic symptoms | 11·9 | |||
| Abdominal pain/discomfort | 0·30 (−0·01 to 0·60) | 0·055 | ||
| Loss of appetite | −0·63 (−1·03 to −0·23) | 0·002 | ||
| Weakness | −0·12 (−0·35 to 0·12) | 0·319 | ||
| Palpitations | 0·07 (−0·25 to 0·39) | 0·669 | ||
| Confusion (urban site) | 0·21 (−0·41 to 0·83) | 0·502 | ||
| Confusion (rural site) | −1·02 (−1·66 to −0·39) | 0·002 | ** | |
| Perceived causes | 32·22 | |||
| Other causes (urban site)f | 0·08 (−0·30 to 0·46) | 0·691 | ||
| Other causes (rural site)f | −0·35 (−0·63 to −0·08) | 0·013 | † | |
| Self-treatment at home | 24·08 | |||
| Drinking more water or liquids | 0·07 (−0·10 to 0·23) | 0·421 | ||
| Herbal treatment | −0·27 (−0·48 to −0·06) | 0·010 | ||
| Oral rehydration solution | −0·12 (−0·26 to 0·02) | 0·094 | ||
| Prayers | 0·43 (0·11 to 0·76) | 0·009 | ||
| Socio-demographics g | 33·54 | |||
| Primary school vs. no education | 0·58 (−0·61 to 1·77) | 0·339 | ||
| Secondary school vs. no education | 0·78 (−0·43 to 1·99) | 0·209 | ||
| Regular and dependable household income | 0·72 (0·25 to 1·18) | 0·002 | ||
| Household size | −0·07 (−0·17 to 0·02) | 0·122 | ||
| Occupation: housewife, student, retiredh | −0·12 (−0·80 to 0·55) | 0·716 | ||
| Occupation: self-employed, formally employed, casual labourh | 0·02 (−0·58 to 0·62) | 0·950 | ||
| Gender (male vs. female) | 0·33 (−0·12 to 0·78) | 0·153 | ||
| Site (rural vs. urban) | −0·34 (−0·87 to 0·20) | 0·216 |
Each of the three focal models (somatic symptoms, perceived causes, self-treatment at home) were adjusted for socio-demographic characteristics.
Logistic regression coefficient with 95% confidence interval.
Bold values indicate P ⩽ 0·05.
Interaction with site: refers to rural compared to urban site, with urban site as the baseline. Site-specific effects on variables considered only if P < 0·1 for site-interaction term. † P < 0·1, ** P ⩽ 0·01.
Difference in corrected Akaike's Information Criterion [Δ(AICc)] between each model and the model with the lowest AICc. Comprehensive model (Table 5) had the lowest AICc and was assigned a value of zero. Models with lower Δ(AICc) values are considered better fitted than those with higher values. Bold values indicate models that are better than the model containing only socio-demographic characteristics.
‘Other causes’ refers to responses that could not be coded within designated categories of the interview. The variety of responses coded under ‘other causes’ included contact with infected persons, unprotected sexual intercourse, cold weather, mosquitoes, breathing in contaminated air and eating cold food.
Variables with which each focal model was adjusted.
Compared with the occupation of agriculture.