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FIGURE 1.

PRISMA Flow-Diagram showing the process of identification, screening, eligibility assessment and inclusion in the analysis.
PRISMA Flow-Diagram showing the process of identification, screening, eligibility assessment and inclusion in the analysis.

Description of the population and study design of the included papers, surveys, and reports, N=18. The sample size and gender distribution reflect the number of participants between 13-18 years of age, who answered the stress questions. “Year” is the year the population was assessed. Surveys with Scandinavian titles, have been translated to English titles, when appropriate.

Author, year of publication Country Year Sample size and girls% Study design Age of population Range (mean (SD)) Data for = Age bracket extracted for this study. Stress measures General findings Changes in stress (“–“ indicates that the data are compared to the row below)
The Swedish Level-of-Living Survey for Children (Child-LNU) 2000 (20,21) Sweden 2000 784 (50,5) Survey, cross-sectional 10-18, (n/a) Data for: 13-18 Single item (non-validated, “During the past six months, how often have you had the following problems? “I felt stressed”)

Age difference in stress scores, where the 16-18-year-olds score higher than the 13-15-year-olds.

Gender difference in stress, where girls score higher than boys.

Child-LNU 2010 (22) Sweden 2010 640 (50,9) Survey, cross-sectional 10-18, (n/a) Data for: 13-18 Single item (non-validated, “During the past six months, how often have you had the following problems? “I felt stressed”)

Age difference in stress scores, where the 16-18-year-olds score higher than the 13-15-year-olds.

Gender difference in stress, where girls score higher than boys.

No increase in stress from year 2000 to 2010
The Living Conditions Survey of Children (Child-ULF) 2008-2014 (23) Sweden 2008-2014 7816 (51,5) Survey, cross-sectional 10-18 (n/a) Data for: 13-18 Single item (non-validated, “During the past six months, how often have you had the following problems? “I felt stressed”)

Age difference in stress prevalence, where the 16-18-year-olds score higher than the 13-15-year-olds.

Gender difference in stress, where girls score higher than boys.

No increase in stress in the years 2008-2014
Child-ULF 2016-2019 (24) Sweden 2016-2019 1360 (51,7) Survey, cross-sectional 12-18 (n/a) Data for: 16-18 Two items (non-validated, “Have you felt stress at some point during the last month?” and “Has it happened every day, a few times a week, once a week or less often?”) Gender difference in stress, where girls score higher than boys. No increase in stress from 2016-2019
Children and Young in Scania (25) Sweden

2012

2016

36 327 (49) Survey, cross-sectional

Grade 6, grade 9 and second grade in upper secondary school (approximate age, respectively: 12-13, 15-16, 17-18)

Data for: 15-16, 17-18

Single item (non-validated, “Do you feel stressed in everyday life?”)

Age difference in stress, where the 17-18-year-olds score higher than the 15-16-year-olds.

Gender difference in stress, where girls score higher than boys.

Increase in stress from 2012 to 2016
Landstedt & Gådin (26) Sweden 2007 1663 (49) Cross-sectional 17 (n/a) Single item (non-validated, “During the past 3 months, how often have you felt stressed?”) Gender difference in stress, where girls score higher than boys.
Aström et al. (27) Sweden 2014 6532 (50) Cross-sectional 15,9 (1,6) Single item (non-validated, “During the past 3 months, how often have you felt stressed?”) Gender difference in stress, where girls score higher than boys. No increase in stress from 2007 to 2014
Thorsen et al. (28) Sweden 2011 179 (71) Cross-sectional 16,9 (n/a) Cohen’s Perceived Stress Scale, 14 items (validated) Non-significant gender difference in stress, where girls score higher than boys.
von Rosen et al. (29) Sweden 2014-2017 391 (67) Cross-sectional 17,9 (1,0) Cohen’s Perceived Stress Scale, 14 items (validated) Gender difference in stress, where girls score higher than boys. No increase in stress from 2011 to 2014-2017
Monitoring of Young people’s Lifestyle and Everyday Life (MULD) (3032) Denmark

2003

2004

2006

5591 (58,6) Survey, cross-sectional 16-20 (n/a) Data for: 16-18 Single item (non-validated, Stress was included under: “Have you been bothered by any of the pain or discomfort mentioned below in the last 14 days?”) Gender difference in stress, where girls score higher than boys. No increase in stress between the years 2003, 2004 and 2006
The Danish National Youth Study 2014 (33) Denmark 2014

60 801

(60,5)

Survey, cross-sectional ≤ 16-20, 21-25. Data for: 15-18 Single item (non-validated, “How often do you feel stressed?”) Gender difference in stress, where girls score higher than boys.
The Danish National Youth Study 2019 (34) Denmark 2019

22 734

(56,6)

Survey, cross-sectional ≤ 16-20, 21-25. Data for: 15-18 Single item (non-validated, “How often do you feel stressed?”) Gender difference in stress, where girls score higher than boys. No increase in stress from 2014 to 2019
Ungdata 18 and Ungdata 19 (7,35) Norway

2017

2018

2019

272 488 Survey, cross-sectional Grade 8-VG3 (approximate age: 13-19) Single item (non-validated, “Have you experienced so many demands during the last week that you had trouble coping with it?”)

Age difference in stress, where the 18-19-year-olds score higher than the 13-14-year-olds.

Gender difference in stress, where girls score higher than boys.

No increase in stress between the years 2017-2018 and 2019
Moksnes et al. (36) Norway 2005 648 (50,5) Cross-sectional 13-18 (n/a)

Adolescent

Stress Questionnaire, Norwegian version (validated)

Gender difference in stress, where girls score higher than boys.
Moksnes et al. (37) Norway 2006 1508 (51,1) Cross-sectional 13-18 (14,9 (1,5))

Adolescent Stress

Questionnaire, Norwegian version (validated)

Gender difference in stress, where girls score higher than boys. No increase in stress from 2005 to 2006
Moksnes et al. (38) Norway 2008 1183 (51,2) Cross-sectional 13-18 (15,56 (1,8)

Adolescent Stress

Questionnaire, Norwegian version (validated)

Gender difference in stress, where girls score higher than boys.
Moksnes and Haugan (39) Norway 2011 1239 (51,2) Cross-sectional 13-18 (15,00 (1,6))

Adolescent Stress

Questionnaire, Norwegian version (validated)

Gender difference in stress, where girls score higher than boys. No increase in stress from 2008 to 2011
Moksnes et al. (40) Norway 2016 1507 (53.4) Cross-sectional 15-21 (17 (1))

Adolescent Stress

Questionnaire Norwegian version (validated)

Gender difference in stress, where girls score higher than boys. Possible increase in certain stress domains from 2011 to 2016
eISSN:
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Journal Subjects:
Medicine, Basic Medical Science, other