LNU for researchers

The Swedish Level of Living Survey (LNU) is a recurring survey in which a nationally representative sample of Sweden’s adult population answers questions about their living conditions. Researchers can apply to use LNU data in their own research projects.

Photo: Roland Magnusson/Mostphotos

This page provides detailed information and documentation from completed data collection waves. It also provides information on how to apply for access to LNU data, data release procedures and terms of use.

Longitudinal data on living conditions

LNU has followed people’s living conditions since 1968 and conducted its eighth and most recent data collection in 2026. The survey is based on a nationally representative sample of Sweden’s adult population. A large proportion of respondents are members of a panel, making it possible to study changes in living conditions over time at the individual level.

To ensure that the survey remains nationally representative, new samples of young adults and foreign-born individuals are added in each wave. By following many participants over long periods, the longitudinal design enables analyses of how different aspects of people’s living conditions are interrelated and how they change in the long term.

Survey content

LNU covers key dimensions of people’s living conditions and makes it possible to study changes over time. The nine original areas covered by the main questionnaire are:

  • Housing
  • Childhood, family and social relations
  • Education
  • Employment and working conditions
  • Health
  • Economic resources
  • Personal and property security
  • Leisure and recreation
  • Civic participation

Two areas have been added later:

  • Perceptions and attitudes
  • Personality

In some waves, LNU has included supplementary studies in which participants’ managers, partners or children have been invited to take part. In connection with LNU 2010, a separate study of the living conditions of foreign-born individuals and their children was also conducted.

LNU includes adults up to the age of 75. Participants who are older than 75 are instead invited to take part in the Swedish Panel Study of Living Conditions of the Oldest Old (SWEOLD), which has been conducted at Karolinska Institutet since 1992.

Access to LNU data

Researchers can apply for access to LNU data for use in their own research projects, including data from the supplementary studies involving participants’ managers, partners and children. The page Apply to use LNU data provides information about data release conditions, rules for use and the application process. Please note that most of the documentation and all datasets are in Swedish.

Apply to use LNU data

Aggregated LNU data are available in a web-based visualisation tool. Researchers can use the tool to explore the content of LNU before applying for access to microdata. The tool covers all parts of the survey and includes most, but not all, variables.

Explore LNU data in the visualisation tool (in Swedish)

Publications based on LNU data are listed on the LNU Publications page.

View LNU publications

About the Swedish Level of Living Survey (LNU)

LNU is a recurring, nationally representative survey of living conditions in Sweden. Data collections have been conducted in 1968, 1974, 1981, 1991, 2000, 2010, 2020–2022 and 2026. Participants are currently between 19 and 75 years old, although the minimum age was lower in early waves.

Up to and including LNU 2010, around 7,000 individuals were invited to participate in each data collection wave. The samples have been considerably larger in the two most recent waves, with approximately 20,000 individuals in 2026. Many participants have taken part in several waves.

LNU is conducted by the Swedish Institute for Social Research (SOFI) at Stockholm University. The project leaders are Carina Mood and Martin Hällsten, both professors of Sociology.

Data collections and documentation

The sections below provide detailed information and documentation for completed data collection waves, including codebooks, questionnaires and technical reports. Use the arrows to view information about each data collection.

Information about the main survey

The survey consists of several sub-surveys, some of which were used as part of a mode experiment. See About the experiment in LNU 2020–22 below. The sub-studies are the main survey (sample H), the experimental survey (samples T1–6), and XT (sample XT).

The table below reports the number of respondents and response rates for all sub-surveys combined, as well as for the samples H + T1–T4 (i.e., the main survey and four of the experimental samples). For details, see the codebook.

Data collection no.

7

Respondents’ age

19-75 years

Number of respondents, all

19,918

Number of respondents, H + T1-4

9,346

Response rate, all

21.0 %

Response rate, H + T1-4

39.2 %

Mode

Telephone interview, web questionnaire, paper questionnaire, or face-to-face interview

Responsible institution

Stockholm University

Fieldwork organisation

Ipsos and Verian, formerly Kantar Sifo

Supplementary studies

Partner-LNU, Child-LNU, Younger-LNU, the experimental survey

About Partner-LNU 2020-2022

A separate questionnaire was distributed to the partners of LNU participants, including spouses and cohabiting partners, in the main survey and the experimental samples T1-4 (see below under About the experiment in LNU 2020-2022). This provided a more complete picture of household welfare without requiring the participants to provide extensive information about their partners. It also made it possible to examine whether participants and the partners had different views on various issues.

Type of study

Respondent’s spouse or cohabiting partner

Number of respondents

3,089

Response rate

54.5 %

Mode

Postal questionnaire, web questionnaire or telephone interview

About Child-LNU 2020-2022

Child-LNU included children of the main respondent, or of the respondent’s spouse or cohabiting partner, who lived in the participant’s household at least one third of the time. Child-LNU was conducted in all sub-surveys. The questions in Child-LNU were designed to correspond closely to those asked of adult participants. The aim was to shed light on children’s welfare and living conditions based on their own responses. The study has contributed to greater knowledge of children’s living conditions.

Type of study

Children in the household

Respondents’ age

10-18 years

Number of respondents

2,293

Response rate*

68.8 %

Mode

Audio questionnaire (recorded questions, answers provided in a questionnaire) or web questionnaire

* The sample includes all children who meet the sampling criteria and have parental consent to participate.

About Younger-LNU 2020-2022

Younger-LNU was a follow-up study involving individuals who had previously participated in Child-LNU. The study also included their partners. Through Younger-LNU, Child-LNU has evolved into a partly separate study, making it possible to analyse how childhood conditions are linked to living conditions later in life.

Type of study

Previous participants in Child-LNU

Respondents’ age

20-38 years

Number of respondents

1,016

Response rate

37.8 %

Mode

Telephone interview, web questionnaire, paper questionnaire, or face-to-face interview

About the experiment in LNU 2020–2022

Supplementary samples were drawn for a mode experiment comparing four data collection modes. Participants were randomly assigned to one of the four modes. The dataset includes, apart from the main survey H (telephone interview), all experimental samples: T1 (paper questionnaire), T2 (telephone interview), T3 (web questionnaire), T4 (paper questionnaire), T5 (face-to-face interview), and T6 (paper questionnaire). For details, see the codebook.

Documentation for LNU 2020-2022

Documentation is currently being prepared and will be published when ready.

Information about the main survey

Data collection no.

6

Respondents’ age

19-75 years

Number of respondents

4,415

Response rate

60.9 %

Mode

Face-to-face interview

Responsible institution

Stockholm University

Fieldwork organisation

Statistics Sweden (SCB)

Supplementary studies

Partner-LNU, Child-LNU, Younger-LNU

Separate survey

Living conditions among foreign-born individuals and their children (UfB)

About Partner-LNU 2010

A separate questionnaire was distributed to the partners of LNU participants, including spouses and cohabiting partners. This provided a more complete picture of household welfare without requiring the participants to provide extensive information about their partners. It also made it possible to examine whether participants and the partners had different views on various issues.

Type of study

Respondent’s spouse or cohabiting partner

Number of respondents

2,522

Response rate

75.4 %

Mode

Postal questionnaire

About Child-LNU 2010

Child-LNU included children of the main respondent, or of the respondent’s spouse or cohabiting partner, who lived in the participant’s household at least one third of the time. The questions in Child-LNU were designed to correspond closely to those asked of adult participants. The aim was to shed light on children’s welfare and living conditions based on their own responses. The study has contributed to greater knowledge of children’s living conditions.

Type of study

Children in the household

Respondents’ age

10-18 years

Number of respondents

923

Response rate

71.9 %

Mode

Audio questionnaire (recorded questions, answers provided in the questionnaire)

About Younger-LNU 2010

Younger-LNU was a follow-up study involving individuals who had previously participated in Child-LNU. The study also included their partners. Through Younger-LNU, Child-LNU has evolved into a partly separate study, making it possible to analyse how childhood conditions are linked to living conditions later in life.

Type of study

Previous participants in Child-LNU

Respondents’ age

20-28 years

Number of respondents

929

Response rate

62.6 %

Mode

Face-to-face interview

Living conditions among foreign-born individuals and their children

In connection with LNU 2010, a separate study was conducted using a representative sample of foreign-born individuals and their children. As the study included the same questions as the main survey, the data can be used to compare the living conditions of foreign-born and Swedish-born individuals. Please note that the data are not held by the LNU unit, and access to them therefore cannot be requested from us.

Documentation for LNU 2010

Codebooks

Codebook for LNU 2010 pdf, 4 MB. (English)

Kodbok för LNU 2010 pdf, 3.9 MB. (Swedish)

Questionnaire

Svarsformulär LNU 2010 pdf, 1.2 MB. (Swedish)

Technical report

Teknisk rapport LNU 2010 pdf, 2 MB. (Swedish)

Partner-LNU 2010

Codebook

The Partner-LNU codebook is part of the LNU 2010 codebook (see above).

Partner form

Partnerformulär LNU 2010 pdf, 89.9 kB. (Swedish)

Child-LNU 2010

Codebook

Kodbok Barn-LNU 2000-2010 pdf, 181.1 kB. (Swedish)

Questionnaire

Svarsformulär Barn-LNU 2010 – familjetyp 1 pdf, 289.7 kB. (Swedish)

Svarsformulär Barn-LNU 2010 – familjetyp 2 pdf, 304.8 kB. (Swedish)

Svarsformulär Barn-LNU 2010 – familjetyp 3 pdf, 304.8 kB. (Swedish)

Younger-LNU 2010

Codebook

Kodbok Yngre-LNU 2010 pdf, 2.6 MB. (Swedish)

Questionnaire

The respondents in Younger-LNU completed the same questionnaire as the respondents in the main survey (see above).

Information about the main survey

Data collection no.

5

Respondents’ age

19-75 years

Number of respondents

5,142

Response rate

76.6 %

Mode

Face-to-face interview

Responsible institution

Stockholm University

Fieldwork organisation

Statistics Sweden (SCB)

Supplementary studies

Partner-LNU, Child-LNU, Workplace survey (APU)

About Partner-LNU 2000

A separate questionnaire was distributed to the partners of LNU participants, including spouses and cohabiting partners. This provided a more complete picture of household welfare without requiring the participants to provide extensive information about their partners. It also made it possible to examine whether participants and the partners had different views on various issues.

Type of study

Respondent’s spouse or cohabiting partner

Number of respondents

2,736

Response rate

78.2 %

Mode

Postal questionnaire

About Child-LNU 2000

Child-LNU included children of the main respondent, or of the respondent’s spouse or cohabiting partner, who lived in the participant’s household at least one third of the time. The questions in Child-LNU were designed to correspond closely to those asked of adult participants. The aim was to shed light on children’s welfare and living conditions based on their own responses. The study has contributed to greater knowledge of children’s living conditions.

Type of study

Children in the household

Respondents’ age

10-18 years

Number of respondents

1,304

Response rate

86 %

Mode

Audio questionnaire (recorded questions, answers provided in the questionnaire)

About the Workplace Survey (APU) 2000

The Workplace Survey covered workplaces where LNU 2000 participants were employed, as well as workplaces included in APU 1991. The survey focused on working conditions and organisational structures, with particular emphasis on personnel functions and managerial work.

Type of study

Workplace survey

Number of respondents

1,517

Response rate

58.3 %

Mode

Postal questionnaire

Documentation for LNU 2000

Codebooks

Codebook for LNU 2000 pdf, 3.1 MB. (English)

Kodbok för LNU 2000 pdf, 1 MB. (Swedish)

Questionnaires

In 2000, three different questionnaires were used in the main survey:

NY questionnaire – for individuals participating in LNU for the first time. This was the most extensive questionnaire and included questions about childhood and early education, among other topics.

NY-formulär LNU 2000 pdf, 542.5 kB. (English)

NY-formulär LNU 2000 pdf, 537.3 kB. (Swedish)

PU questionnaire – for previous participants who had been too young at the time of the previous survey wave to answer questions about their employment history.

PU-formulär LNU 2000 pdf, 887.5 kB. (Swedish)

PS questionnaire – for individuals who had participated in several previous survey waves and had also answered questions about their employment history in 1991. In 2000, these individuals only needed to report on their employment from 1990 onwards.

PS-formulär LNU 2000 pdf, 888.6 kB. (Swedish)

Interviewer instructions

Intervjuarinstruktioner LNU 2000 – del 1 pdf, 56.3 kB. (Swedish)

Intervjuarinstruktioner LNU 2000 – del 2 pdf, 39.2 kB. (Swedish)

Intervjuarinstruktioner LNU 2000 – del 3 pdf, 9.3 kB. (Swedish)

Intervjuarinstruktioner LNU 2000 – del 4 pdf, 53.8 kB. (Swedish)

Intervjuarinstruktioner LNU 2000 – del 5 pdf, 53.7 kB. (Swedish)

Partner-LNU 2000

Codebook

The Partner-LNU codebook is part of the LNU 2000 codebook (see above).

Partner form

Partner form LNU 2000 pdf, 364.4 kB. (English)

Partnerformulär LNU 2000 pdf, 364.4 kB. (Swedish)

Child-LNU 2000

Codebook

Kodbok Barn-LNU och Barn-ULF 2000-2003 pdf, 617.9 kB. (Swedish)

Questionnaire

Svarsformulär Barn-LNU 2000 – familjetyp 1 pdf, 87.2 kB. (Swedish)

Svarsformulär Barn-LNU 2000 – familjetyp 2 pdf, 97.3 kB. (Swedish)

Svarsformulär Barn-LNU 2000 – familjetyp 3 pdf, 97.1 kB. (Swedish)

Svarsformulär Barn-ULF 2002 pdf, 532.7 kB. (Swedish)

Workplace Survey 2000

Codebook

Kodbok APU 2000 pdf, 198.1 kB. (Swedish)

Questionnaire

Svarsformulär APU 2000 pdf, 78.3 kB. (Swedish)

Information about the main survey

Data collection no.

4

Respondents’ age

18-75 years

Number of respondents

5,306

Response rate

79.1 %

Mode

Face-to-face interview

Responsible institution

Stockholm University

Fieldwork organisation

Statistics Sweden (SCB)

Supplementary study

Workplace survey (APU)

About the Workplace Survey (APU) 1991

The Workplace Survey targeted workplaces where LNU 1991 participants were employed. The aim was to include workplaces with at least 50 employees, although some smaller workplaces with at least 10 employees were also included. With the participant’s consent, a telephone interview was conducted with the most senior manager at the workplace and, in some cases, with the person responsible for personnel matters.

The survey included questions about working conditions and workplace organisation, including the market situation, organisational structure, staff turnover, decision-making systems, forms of control, recruitment, training and wage formation.

Type of study

Workplace survey

Number of respondents

1,988

Response rate

93 %

Mode

Telephone interview

Documentation for LNU 1991

Codebook

Kodbok för LNU 1991 pdf, 671 kB. (Swedish)

Questionnaire

Svarsformulär LNU 1991 pdf, 340.8 kB. (Swedish)

Interviewer instructions

Intervjuarinstruktioner LNU 1991 pdf, 205.2 kB. (Swedish)

Response cards

Svarskort LNU 1991 pdf, 52 kB. (Swedish)

Workplace Survey 1991

Codebook

Kodbok APU 1991 pdf, 290.6 kB. (Swedish)

Information about the main survey

Data collection no.

3

Respondents’ age

15-75 years

Number of respondents

5,613

Response rate

82.4 %

Mode

Face-to-face interview

Responsible institution

Stockholm University

Fieldwork organisation

Statistics Sweden (SCB)

Documentation for LNU 1981

Codebook

Kodbok LNU 1981 pdf, 62.3 MB. (Swedish)

Questionnaire

Svarsformulär LNU 1981 pdf, 1.3 MB. (English)

Svarsformulär LNU 1981 pdf, 5.5 MB. (Swedish)

Information about the main survey

Data collection no.

2

Respondents’ age

15-75 years

Number of respondents

5,616

Response rate

85.2 %

Mode

Face-to-face interview

Responsible institution

Stockholm University

Fieldwork organisation

Statistics Sweden (SCB)

Documentation for LNU 1974

Codebook

Kodbok LNU 1974 pdf, 46.6 MB. (Swedish)

Questionnaire

Svarsformulär LNU 1974 pdf, 6.4 MB. (Swedish)

Information about the main survey

Data collection no.

1

Respondents’ age

15-75 years

Number of respondents

5,921

Response rate

90.8 %

Mode

Face-to-face interview

Responsible institution

Uppsala University

Fieldwork organisation

Statistics Sweden (SCB)

Documentation for LNU 1968

Codebook

Kodbok LNU 1968 pdf, 586 kB. (Swedish)

Questionnaire

Svarsformulär LNU 1968 pdf, 1.5 MB. (English)

Svarsformulär LNU 1968 pdf, 6.8 MB. (Swedish)

Contact

Feel free to contact the LNU team.

LNU team
lnu@sofi.su.se

Project leaders
Carina Mood, professor
carina.mood@sofi.su.se

Martin Hällsten, professor
martin.hallsten@sofi.su.se

Survey director
Katarina Boye, associate professor
katarina.boye@sofi.su.se

Last updated: 2026-11-10

Source: Swedish Institute for Social Research