Thomas Volken

Prof. Dr. Thomas Volken

ZHAW School of Health Professions, Institute of Health Sciences, Katharina-Sulzer-Platz 9, 8400 Winterthur, Switzerland
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Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Thomas VolkenThomas Volken
Thomas Volken
Annina ZyssetAnnina Zysset
Annina Zysset
SASimone Amendola
Simone Amendola
ASAnthony Klein Swormink
Anthony Klein Swormink
MHMarion Huber
Marion Huber
Julia DratvaJulia Dratva
Julia Dratva
Background: COVID-19 containment measures and the uncertainties associated with the pandemic may have contributed to changes in mental health risks and mental health problems in university students. Due to the high burden of the disease, depression is of particular concern. However, knowledge about the prevalence of depressive symptoms in Swiss university students during the pandemic is limited. We therefore assessed the prevalence of depressive symptoms and their change during the COVID-19 pandemic in a large sample of Swiss university students. Methods: We assessed depressive symptoms in two cross-sectional cohorts of university students (n = 3571) in spring and autumn 2020 during the COVID-19 pandemic and compared them with a matched sample of the Swiss national population (n = 2328). Binary logistic regression models estimated prevalence with corresponding 95% confidence intervals (95% CI). Results: Adjusted prevalence of depressive symptoms in female (30.8% (95% CI: 28.6–33.0)) and male students (24.8% (95% CI: 21.7–28.1)) was substantially higher than in the matching female (10.9% (95% CI: 8.9–13.2)) and male (8.5% (6.6–11.0)) pre-pandemic national population. Depressive symptoms in the two consecutive student cohorts did not significantly differ. Conclusions: More than a quarter of Swiss university students reported depressive symptoms during the COVID-19 pandemic, which was substantially higher as compared to the matched general population. Universities should introduce measures to support students in such times of crisis and gain an understanding of the factors impacting mental health positively or negatively and related to university structures and procedures.

23 February 2013 in BMC Public Health
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Journal Article
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Thomas VolkenThomas Volken
Thomas Volken
Unit non-response occurs in sample surveys when a target subject does not respond to a survey. Potential implications are decreased power, increased standard error, and non-response bias. The objective of this study was to assess the factors associated with participation in a written survey (MSHS) of subjects who had previously participated in the Swiss Health Survey (SHS) and to evaluate to what extent non-participation could impact the estimation of various MSHS health outcomes.

Julia DratvaJulia Dratva
Julia Dratva
Annina ZyssetAnnina Zysset
Annina Zysset
NSNadine Schlatter
Nadine Schlatter
AWAgnes Von Wyl
Agnes Von Wyl
MHMarion Huber
Marion Huber
Thomas VolkenThomas Volken
Thomas Volken
University students were confronted with abrupt changes to their daily lives by the COVID-19 lock-down. We investigated Generalized Anxiety Disorder Scale-7 (GAD-7) and anxiety levels, and the association between perceived impact on well-being, studies, and daily lives and anxiety levels, adjusted for gender, age, social class and affiliation. Early in the lock-down all students of the Zurich University of Applied Sciences (N = 12,429) were invited to a voluntary longitudinal health survey. Participation rate was 20% (n = 2437): 70% females, median age 25 yrs. (IQR 23–28). A total of 10% reported a deterioration of well-being compared to pre-Corona. LCA yielded three classes varying in perceived COVID-19 impact: 1 (low, n = 675), 2 (moderate, n = 1098), and 3 (strong, n = 656). Adjusted proportion of moderate to severe anxiety by class were 45% (95% CI: 28.0–62.0), 15.5% (95% CI: 13.1–17.9), and 5.1% (95% CI: 4.7–5.6), respectively. Multivariate regression analyses yielded an OR for moderate to severe anxiety of 3.88 (95% CI: 2.5–6.0, class 2) and 22.43 (95% CI: 14.5–34.6, class 3) compared to class-1. The investigated association implies that containment measures have a selective effect on anxiety in students. The diversity of students’ perception and associated anxiety should be monitored and considered in future response to pandemics.


4 April 2021 in European Spine Journal
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Journal Article
Open access
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AAAndrea M. Aegerter
Andrea M. Aegerter
MDManja Deforth
Manja Deforth
VJVenerina Johnston
Venerina Johnston
GSGisela Sjøgaard
Gisela Sjøgaard
Thomas VolkenThomas Volken
Thomas Volken
TZThomas Zweig
Thomas Zweig
Purpose: The aim of this study was to investigate the effect of working from home on neck pain (NP) among office workers during the COVID-19 pandemic. Methods: Participants from two Swiss organisations, aged 18–65 years and working from home during the lockdown (n = 69) were included. Baseline data collected in January 2020 before the lockdown (office work) were compared with follow-up data in April 2020 during lockdown (working from home). The primary outcome of NP was assessed with a measure of intensity and disability. Secondary outcomes were quality of workstation ergonomics, number of work breaks, and time spent working at the computer. Two linear mixed effects models were fitted to the data to estimate the change in NP. Results: No clinically relevant change in the average NP intensity and neck disability was found between measurement time points. Each working hour at the computer increased NP intensity by 0.36 points (95% CI: 0.09 to 0.62) indicating strong evidence. No such effect was found for neck disability. Each work break taken reduced neck disability by 2.30 points (95% CI: − 4.18 to − 0.42, evidence). No such effect was found for NP intensity. There is very strong evidence that workstation ergonomics was poorer at home. Conclusion: The number of work breaks and hours spent at the computer seem to have a greater effect on NP than the place of work (office, at home), measurement time point (before COVID-19, during lockdown) or the workstation ergonomics. Further research should investigate the effect of social and psychological factors. Trial registration: ClinicalTrials.gov, NCT04169646. Registered 15 November 2019—Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04169646.

19 October 2018 in BMC Public Health
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Open access
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RCRebecca Crawford
Rebecca Crawford
Thomas VolkenThomas Volken
Thomas Volken
RSRené Schaffert
René Schaffert
TBThomas Bucher
Thomas Bucher
Low back pain (LBP) and neck pain (NP) are of considerable socioeconomic burden. Considering the escalating demand on health services that LBP and NP have globally, they represent an arguably unsustainable drain on resources with the projected increased demand secondary to an ageing population. Identifying populations at risk for LBP and NP may inform public health prevention strategies. Health professions’ (HP) students may be more susceptible due to their demographic factors and potentially risky postural demands of their education and formative clinical practice. The aim of our study was to compare self-reported LBP and NP of HP students with the general and stratified Swiss population to identify their prevalence. In addition, we compared the prevalence of LBP and NP in students studying different professions in order to identify whether susceptibilities exist. In this cross-sectional study, self-reported LBP and NP reported by final-year HP students (n = 1848) were compared with the Swiss national population aged ≥15 years living in private households (n = 21,597). Binary regression models estimated crude prevalence and prevalence adjusted for age, gender, and education. Design-based F-Tests assessed differences between students and the Swiss population. Crude, overall four-week (4w) prevalence (mean (95% CIs)) for LBP was 61.0% (58.4–63.5) in all HP students versus 40.0% (39.2–40.9) in the Swiss population. Female HP students aged 21–30 years (63.3% (60.5–66.1)) reported higher LBP than the same-aged Swiss female population with secondary (43.7% (39.5–47.9)) or tertiary (36.6% (30.8–42.9)) education. Crude, overall 4w prevalence for NP was 59.8% (57.2–62.3) in all HP students versus 36.4% (35.6–37.3) in the Swiss population. Female health professions’ students aged 21–30 years reported higher NP (63.2% (60.4–66.0)) than the same-aged Swiss female population with secondary (36.6% (32.7–40.8)) or tertiary (35.4% (29.6–41.8)) education. The inter-professional differences shown indicate midwifery to be most susceptible to reporting both conditions. Considerably higher LBP and NP were reported by final year HP students when compared with the general and stratified Swiss population. Worrying inter-professional susceptibilities were shown and reveal the need for further explanatory studies. Measures to reduce complex health problems like LBP and NP should be introduced into curricula in order to optimize the longevity of clinical careers and to protect the future HP workforce.