Starting in February 2022, an increasing number of refugees and third-country nationals (TCNs) entering Poland was registered as a result of the war in Ukraine. As of July 2022, over 4.3 million arrivals have been reported by the Polish authorities from Ukraine. To ensure that reponse actors have the necessary evidence base to effectively respond to the needs of Ukrainian refugee households in Poland, UNHCR and REACH carried out this joint Multi-Sectoral Needs Assessment (MSNA) targeting the population displaced due to the war in Ukraine and currently residing in Poland.
Due to lack of complete data on location and profile of refugees residing in Poland, PESEL registration data (the national identification number used in Poland) was used as a proxy indicator for sampling for non-probability quota sampling for refugees residing in the host community. The sample includea two distinct population groups: refugees living in host community, outside of the collective sites (CSs), and refugees residing in CSs. Refugees living outside of CSs cover a variety of accommodation types, including private accommodation, being hosted by family, friends, or by Polish families, among others. This dataset is the anonymous version of the original dataset.
Two approaches have been taken: a non-probability quota sampling for refugees residing in host community; and purposive sampling for refugees in collective sites.
Dates of Data Collection
Mode of data collection
UN Refugee Agency
Data Collection Notes
Interviews were conducted in person only with the head of the household or any other adult members consenting to the interview and willing to respond on behalf of the household. Two separate microdata files were produced; one at the household-level and one at the individual-level.
UNHCR Global Data Service Statistics and Demographics Section
UN Refugee Agency (UNHCR)
DDI Document ID
UN Refugee Agency
Development Economics Data Group
The World Bank
Metadata adapted for World Bank Microdata Library
Date of Metadata Production
DDI Document version
Version 01 (February 2023): This metadata was downloaded from the UNHCR catalog (https://microdata.unhcr.org/index.php/home) and it is identical to UNHCR version (UNHCR_POL_2022_MSNA_v2.1). The following two metadata fields were edited - Document ID and Survey ID.