Data from John Snow's 1855 study of the cause of cholera

Description

A subset of the aggregated death rate data from Snow's legendary study of the source of the London Cholera outbreak.

Usage

snow

Format

A data frame with 4 rows and 4 variables

year

Year

supplier

Water pump supplier

treatment

Status of water pump

deathrate

Deaths per 10k 1851 population

Details

This data is used in the Difference-in-Differences chapter of The Effect by Huntington-Klein.

Source

Snow, John. 1855. 'On the Mode of Communication of Cholera'. John Churchill."

Coleman, Thomas. 2019. 'Causality in the time of cholera: John Snow as a prototype for causal inference.' SSRN 3262234."

References

Huntington-Klein. 2021. The Effect: An Introduction to Research Design and Causality. https://theeffectbook.net.