TABLE 6.
Variable | Dissaving score | Univariate logistic regression | Multiple logistic regression | ||
Mean | Unadjusted OR (95% CI) | p-value | Adjusted OR (95% CI) | p-value | |
Catastrophic costs | |||||
Incurred | 0.58 | 2.4 (1.5–3.9) | 0.001 | 1.8 (1.1–3.1) | 0.02 |
Not incurred | −0.43 | ||||
Poverty | |||||
Poorer | 0.37 | 2.3 (1.4–3.7) | 0.001 | 1.8 (1.1–3.0) | 0.03 |
Less poor | −0.35 | ||||
Food insecurity | |||||
High | 0.3 | 2.6 (1.5–4.5) | 0.001 | 2.2 (1.2–3.8) | 0.008 |
Low | −0.26 | ||||
Secondary education | |||||
Incomplete | 0.36 | 1.7 (1.0–2.7) | 0.03 | ||
Complete | −0.165 | ||||
Employment | |||||
Unpaid/no work | 0.16 | 1.1 (0.68–1.8) | 0.6 | ||
Paid work | −0.23 | ||||
Symptom duration | |||||
Longer | 0.09 | 1.4 (0.84–2.2) | 0.2 | ||
Shorter | −0.068 | ||||
Type of TB | |||||
Non-MDR | 0.008 | 1.1 (0.49–2.6) | 0.8 | ||
MDR | −0.09 | ||||
Sex | |||||
Female | 0.07 | 1.1 (0.66–1.7) | 0.8 | ||
Male | −0.04 |
The patient cohort had a median average dissaving score of 0. Higher (more positive) scores indicate greater dissaving and hence greater financial shock. Health and socioeconomic variables were analysed for association with having a greater than average dissaving score by univariate logistic regression. Multiple logistic regression was then performed with stepwise exclusion of non-contributory (p>0.1) variables. The variables that have blank cells in the multiple logistic regression columns were those non-contributory variables excluded from the final model. The variable “secondary education” was entered but was significantly associated in the multiple regression model. Secondary education, employment, symptom duration, type of TB and sex all refer to the patient. A complementary linear regression analysis of the association of a higher dissaving score with health and socioeconomic variables showed a similar pattern of significance with a higher dissaving score being independently associated with incurring catastrophic costs (coefficient 0.30 (95% CI 0.047–0.55), p=0.02) and having greater food insecurity (coefficient 0.38 (95% CI 0.12–0.64), p=0.004). TB: tuberculosis; MDR: multidrug resistant.