Introduction:

Prison population is affected by tuberculosis (TB) due to prison overcrowding. This situation reflects an inequity in health, understood as an unfair and avoidable difference between individuals and populations.

Objective:

To estimate the conditions of prison overcrowding as health inequity in prison population suffering from TB in Colombia during 2018.

Materials and methods:

This is an ecological study to estimate inequities at the national level in prison population through the use of the World Health Organization methodology for the measurement of inequalities. Based on data from the public health surveillance system, the incidence of TB was taken as an indicator and the percentage of overcrowding as an equity stratifier. Simple and complex measures of inequality were calculated.

Results:

The relative inequality between the lowest and highest quintiles of crowding showed that TB incidence among prison population with the highest crowding was 1.92 times that of the group with the lowest crowding. The inequality index identified an excess of 724 TB cases per 100,000 among those with the highest concentration of overcrowding. The health concentration index was -0.121, which shows that the incidence was concentrated in the group with the most overpopulation.

Conclusion:

In Colombia, prison population in overcrowded conditions and suffering from TB has to face unfair and avoidable inequalities as compared with those not living in these conditions. Policies are required to reduce overcrowding and improve living conditions in prisons.

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