Determinants of HPV-vaccination uptake and subgroups with a lower uptake in the Netherlands

de Munter, A. C.; Klooster, T. M. Schurink-van t; van Lier, A.; Akkermans, R.; de Melker, H. E.; Ruijs, W. L. M.

doi:10.1186/s12889-021-11897-0

BMC Public Health

Table 1 Characteristics of variables: level of aggregation, measurement level, year of data collection for each invitation year and original database

From: Determinants of HPV-vaccination uptake and subgroups with a lower uptake in the Netherlands

Variable	Measurement level	Invitation Year¹	Year of data collection²	Database
*Individual-level*
HPV-vaccination status (dependent variable)	Dichotomous: Completed series of HPV-vaccinations; 0 = has no completed HPV-vaccination series; 1 = has a completed HPV-vaccination series (2012: 3-doses; 2014/2017: 2-doses)	2012 2014 2017	2018 2018 2018	Praeventis
MMR-vaccination status	Categorical: Zero, one, two doses of MMR-vaccination	2012 2014 2017	2018 2018 2018	Praeventis
DT (aP)-IPV-vaccination status	Categorical: Zero, primary series (3-doses), completed series (6-doses) of DT (aP)-IPV-vaccination	2012 2014 2017	2018 2018 2018	Praeventis
Ethnicity ³	Categorical: 14 combinations of parents’ country of birth⁴ and the category unknown (one or both parents’ country of birth is unknown)⁵	2012 2014 2017	2018 2018 2018	Praeventis
*Postal code-level*
Socioeconomic status (SES)	Categorical: Status score low (≤ − 1.0000), low-intermediate (−0.9999 to 0.0000), high-intermediate (0.0001–0.9999), high (≥1.0000)	2012 2014 2017	2010 2014 2016	SCP
Road distance	Categorical: 0 km (HPV-vaccination provided in same postal code as home address), 0–5 (0.1–4.9) km, 5–10 (5.0–9.9) km, ≥10 km	2012 2014 2017	2014 2014 2017	MHS
*Municipality-level*
Urbanization level⁵	Categorical: Very high (> 2500 addresses per km²), High (1500–2500 add. Per km²), Moderately high (1000–1500 add. Per km²), Low (500–1000 add. Per km²), Very low (< 500 add. Per km²)	2012 2014 2017	2017 2017 2017	CBS
Voting proportions from the National Elections for political parties⁶	Dichotomous: Voting proportion (percentage of votes per political party) lower or higher than the mean of the national voting proportion of the party.	2012 2014 2017	2012 2012 2017	Electoral Council

Abbreviations: HPV Human Papillomavirus, MMR Mumps-measles-rubella, DTaP-IPV diphtheria-tetanus-pertussis-polio, SCP The Netherlands Institute for Social Research, MHS Municipal Health Services, CBS Statistics Netherlands, km kilometer. Praeventis National vaccination registry
¹ Girls invited for HPV-vaccination through the NIP in the years 2012, 2014 and 2017 were born in 1999, 2001 and 2004 respectively
² If data was not available for a certain invitation year, data of the most recent year was used
³ From December 2002 onwards, parents’ country of birth was authorized from the Personal Records Database (Dutch: BRP, previously known as GBA) and therefore more complete for girls invited in 2017 (birth cohort 2004) than for girls invited in 2012 and 2014 (birth cohorts 1999 and 2001)
⁴ The Netherlands-The Netherlands, The Netherlands-Turkey, Turkey-Turkey, The Netherlands-Morocco, Morocco-Morocco, The Netherlands-Surinam, Surinam-Surinam, The Netherlands-Netherlands Antilles and Aruba, Netherlands Antilles and Aruba-Netherlands Antilles and Aruba, The Netherlands-other western country, other western country-other western country, The Netherlands-other non-western country, other non-western country -other non-western country, other western country-other non-western country, unknown
⁵ In the database the urbanization level of 2017 was used; the most recent HPV-vaccination invitation year. Following the municipal re-division between 2017 and 2018, several municipalities merged into three new municipalities. For these three new municipalities we used the urbanization level of 2018
⁶ Ten variables: 1) People’s Party for Freedom and Democracy (VVD; right-wing liberal party with more progressive positions in ethical matters), 2) Labour Party (PvdA; progressive, social-democratic party) & Denk (DENK; movement for migrants and a “tolerant and solidary society”; political party founded in 2015 by former members of the PvdA), 3) Party for Freedom (PVV; populist party with both conservative, liberal “right” and “left” views) & Forum for Democracy (FvD; conservative, right-wing populist Eurosceptic political party; political party founded in 2015, whose voters are mainly former PVV
voters), 4) Socialist Party (SP; socialist, Eurosceptic party which has a strong local, action-oriented basis), 5) Christian Democratic Appeal (CDA; Christian-inspired party at the center of the political spectrum), 6) Democrats 66 (D66; reformist social-liberal party), 7) Christian Union (CU; Christian party, with progressive positions in the social and ecological field and conservative positions on ethical issues) & Reformed Political Party (SGP; conservative Christian (Reformed) party that wants to conduct politics strictly according to Biblical standards), 8) Green Left (GL; progressive party which attaches great importance to sustainability), 9) Party for the Animals (PvdD; testimonial party with main goals animal rights and animal welfare), 10) 50PLUS (50+; party that stands up especially for the interests of people aged 50 and over). The voting proportions for the three new municipalities in 2018 were calculated based on the weighted averages of the voting proportions of the previous municipalities before they were merged into the new municipality.

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ISSN: 1471-2458

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