Income disparities between adult childhood cancer survivors and their peers-A register-based cohort study from the SALiCCS research programme.

Kyrönlahti, Anniina; Erdmann, Friederike; Feychting, Maria; Frederiksen, Line Elmerdahl; Hirvonen, Elli; Korhonen, Liisa Maria; Krøyer, Anja; Mader, Luzius; Malila, Nea; Mogensen, Hanna; Pedersen, Camilla; Talbäck, Mats; Taskinen, Mervi; Winther, Jeanette Falck; Madanat-Harjuoja, Laura; Pitkäniemi, Janne (2023). Income disparities between adult childhood cancer survivors and their peers-A register-based cohort study from the SALiCCS research programme. Cancer medicine, 12(15), pp. 16455-16468. Wiley 10.1002/cam4.6218

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BACKGROUND

Childhood cancer survivors face various adverse consequences. This Nordic register-based cohort study aimed to assess whether survivors of childhood cancer are more likely to have low income than their peers.

METHODS

We identified 17,392 childhood cancer survivors diagnosed at ages 0 to 19 between 1971 and 2009 with 83,221 age-, sex-, and country-matched population comparisons. Annual disposable income at ages 20 to 50 years was retrieved from statistical offices (for 1990-2017) and categorized into low income and middle/high income. The number of transitions between income categories were assessed using binomial regression analyses.

RESULTS

The prevalence of annual low income among childhood cancer survivors was 18.1% and 15.6% among population comparisons (risk ratio [RR] 1.17; 95% confidence interval [CI] 1.16-1.18). Compared to population comparisons, childhood cancer survivors were 10% (95% CI 8%-11%) less likely to transition from low to middle/high income and 12% (10%-15%) more likely to transition from middle/high to low income during follow-up. Among those initially in the low income category, survivors were 7% (95% CI 3%-11%) more likely to remain in the low income category. If the initial category was middle/high income, childhood cancer survivors were 10% (95% CI 8%-11%) less likely to remain in the middle/high income and 45% (37%-53%) more likely to transition to the low income category permanently.

CONCLUSIONS

Childhood cancer survivors are at higher risk for low income in adulthood than their peers. These disparities might be reduced by continued career counseling along with support in managing within the social security system.

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