Table 1.
Demographic and tumour characteristics of the included patients.
Fig 1.
Distribution and summary metrics of patient household monthly income, assessed by self-reporting, the International Wealth Index and the Gapminder tool.
The graphs display histograms of the self-reported, IWI and Gapminder incomes, with overlapped Kernel density plots showing the overall distribution of income figures in the three types of assessment. Summary metrics of the three income assessments are provided to allow comparison. All incomes are reported in Indian Rupees (₹). Full description of the income methods assessment available in Methods.
Fig 2.
Distribution of all patient household income assessments (self-reported, IWI and Gapminder) in a combined density plot.
Combined Kernel density plot graph displaying the distribution of incomes assessed by the three income assessment tools (self-reported, IWI and Gapminder tool). Patient income is reported in Indian Rupees (₹).
Fig 3.
Bland-Altman analysis exploring agreement between the self-reported income and the International Wealth Index and the Gapminder incomes.
(A) Bland Altman plots describing the agreement patterns between the self-reported income and the International Wealth Index and the Gapminder incomes, respectively. Plots display difference between measured incomes against mean average of measured incomes. The dotted lines represent a difference between income measurements of 25000, 50000 and 100000 INR, respectively. The full line represents perfect agreement (no difference between reported and estimated income). (B) Proportion of patients for whom the observed difference between the assessed incomes is within 25000, 50000 and 100000 INR.
Fig 4.
Catastrophic expenditure rates for colorectal cancer care, when using self-reported household income versus the International Wealth Index income or the Gapminder income.
The bar chart compares the number of patients undergoing catastrophic expenditure, when the income is self-reported, assessed through the IWI or the Gapminder tool.