Kati Karhula

987 total citations
37 papers, 686 citations indexed

About

Kati Karhula is a scholar working on Experimental and Cognitive Psychology, General Health Professions and Social Psychology. According to data from OpenAlex, Kati Karhula has authored 37 papers receiving a total of 686 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Experimental and Cognitive Psychology, 30 papers in General Health Professions and 15 papers in Social Psychology. Recurrent topics in Kati Karhula's work include Sleep and Work-Related Fatigue (32 papers), Workplace Health and Well-being (30 papers) and Ergonomics and Musculoskeletal Disorders (11 papers). Kati Karhula is often cited by papers focused on Sleep and Work-Related Fatigue (32 papers), Workplace Health and Well-being (30 papers) and Ergonomics and Musculoskeletal Disorders (11 papers). Kati Karhula collaborates with scholars based in Finland, United Kingdom and Sweden. Kati Karhula's co-authors include Mikko Härmä, Sampsa Puttonen, Mika Kivimäki, Aki Koskinen, Annina Ropponen, Anneli Ojajärvi, Tuula Oksanen, Jussi Vahtera, Mikael Sallinen and Tarja Hakola and has published in prestigious journals such as PLoS ONE, International Journal of Environmental Research and Public Health and Accident Analysis & Prevention.

In The Last Decade

Kati Karhula

35 papers receiving 668 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Kati Karhula Finland	17	463	415	162	55	54	37	686
Tomohide Kubo Japan	16	411 0.9×	300 0.7×	224 1.4×	46 0.8×	47 0.9×	61	724
Tarja Hakola Finland	15	541 1.2×	400 1.0×	234 1.4×	65 1.2×	93 1.7×	30	787
Aline Silva‐Costa Brazil	16	378 0.8×	318 0.8×	80 0.5×	81 1.5×	70 1.3×	47	600
J. Pokorski Poland	11	260 0.6×	238 0.6×	71 0.4×	35 0.6×	50 0.9×	22	623
A. van Drongelen Netherlands	10	239 0.5×	221 0.5×	71 0.4×	42 0.8×	60 1.1×	17	431
Danielle C. L. Mohren Netherlands	12	138 0.3×	279 0.7×	108 0.7×	22 0.4×	55 1.0×	14	500
Takeshi Sasaki Japan	13	198 0.4×	260 0.6×	95 0.6×	30 0.5×	14 0.3×	42	577
Ichiro Oyama Japan	10	143 0.3×	173 0.4×	65 0.4×	34 0.6×	73 1.4×	17	373
Suzanne L. Merkus Norway	10	201 0.4×	220 0.5×	78 0.5×	31 0.6×	50 0.9×	23	395
Jenny-Anne Lie Norway	12	333 0.7×	168 0.4×	106 0.7×	66 1.2×	178 3.3×	19	599

Countries citing papers authored by Kati Karhula

Since Specialization

Citations

This map shows the geographic impact of Kati Karhula's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kati Karhula with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kati Karhula more than expected).

Fields of papers citing papers by Kati Karhula

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kati Karhula. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kati Karhula. The network helps show where Kati Karhula may publish in the future.

Co-authorship network of co-authors of Kati Karhula

This figure shows the co-authorship network connecting the top 25 collaborators of Kati Karhula. A scholar is included among the top collaborators of Kati Karhula based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kati Karhula. Kati Karhula is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Karhula, Kati, et al.. (2025). Supporting the well-being of nurses, paramedics, and firefighters during external crises by managing workload: an umbrella review. Industrial Health. 63(5). 414–430.

Turunen, Jarno, Kati Karhula, Annina Ropponen, et al.. (2025). Evaluating quick return restrictions on sickness absence in healthcare employees: A difference-in-differences study. International Journal of Nursing Studies. 163. 104996–104996. 1 indexed citations

Järnefelt, Heli, et al.. (2024). Factors facilitating and hindering the implementation of digital sleep coaching for bus drivers. Applied Ergonomics. 121. 104356–104356.

Karhula, Kati, Aki Koskinen, Jenni Ervasti, et al.. (2022). Hospital physicians´ working hour characteristics and sleep quality: a cross-sectional analysis of realized working hour and survey data. BMC Health Services Research. 22(1). 943–943. 13 indexed citations

Shiri, Rahman, Jarno Turunen, Kati Karhula, et al.. (2022). The association between the use of shift schedule evaluation tool with ergonomics recommendations and occupational injuries: A 4-year prospective cohort study among healthcare workers. Scandinavian Journal of Work Environment & Health. 49(2). 108–116. 4 indexed citations

Turunen, Jarno, Kati Karhula, Annina Ropponen, et al.. (2022). The Time-Varying Effect of Participatory Shift Scheduling on Working Hour Characteristics and Sickness Absence: Evidence from a Quasi-Experiment in Hospitals. International Journal of Environmental Research and Public Health. 19(22). 14654–14654. 3 indexed citations

Härmä, Mikko, Rahman Shiri, Jenni Ervasti, et al.. (2022). National Recommendations for Shift Scheduling in Healthcare: A 5-Year Prospective Cohort Study on Working Hour Characteristics. SSRN Electronic Journal. 2 indexed citations

Karhula, Kati, Jarno Turunen, Tarja Hakola, et al.. (2020). The effects of using participatory working time scheduling software on working hour characteristics and wellbeing: A quasi-experimental study of irregular shift work. International Journal of Nursing Studies. 112. 103696–103696. 20 indexed citations

Turunen, Jarno, Kati Karhula, Annina Ropponen, et al.. (2020). The effects of using participatory working time scheduling software on sickness absence: A difference-in-differences study. International Journal of Nursing Studies. 112. 103716–103716. 24 indexed citations

10.

Cheng, Wan‐Ju, Mikko Härmä, Annina Ropponen, et al.. (2019). Shift work and physical inactivity: findings from the Finnish Public Sector Study with objective working hour data. Scandinavian Journal of Work Environment & Health. 46(3). 293–301. 16 indexed citations

11.

Karhula, Kati, Aki Koskinen, Anneli Ojajärvi, et al.. (2018). Are changes in objective working hour characteristics associated with changes in work-life conflict among hospital employees working shifts? A 7-year follow-up. Occupational and Environmental Medicine. 75(6). 407–411. 25 indexed citations

12.

Vanttola, Päivi, Mikko Härmä, Katriina Viitasalo, et al.. (2018). Sleep and alertness in shift work disorder: findings of a field study. International Archives of Occupational and Environmental Health. 92(4). 523–533. 31 indexed citations

13.

Härmä, Mikko, Kati Karhula, Annina Ropponen, et al.. (2018). Association of changes in work shifts and shift intensity with change in fatigue and disturbed sleep: a within-subject study. Scandinavian Journal of Work Environment & Health. 44(4). 394–402. 54 indexed citations

14.

Tolvanen, Asko, Christer Hublin, Jukka Kaartinen, et al.. (2018). Effects of alertness management training on sleepiness among long-haul truck drivers: A randomized controlled trial. Accident Analysis & Prevention. 121. 301–313. 21 indexed citations

15.

Karhula, Kati, Sampsa Puttonen, Annina Ropponen, et al.. (2017). Objective working hour characteristics and work–life conflict among hospital employees in the Finnish public sector study. Chronobiology International. 34(7). 876–885. 37 indexed citations

16.

Karhula, Kati, Mikko Härmä, Mikael Sallinen, et al.. (2017). Salivary cortisol and alpha-amylase: Is there consistency between psychosocial stress test and burdensome work shifts?. Journal of Occupational and Environmental Hygiene. 14(12). 1003–1010. 2 indexed citations

17.

Härmä, Mikko, Aki Koskinen, Annina Ropponen, et al.. (2016). Validity of self-reported exposure to shift work. Occupational and Environmental Medicine. 74(3). 228–230. 56 indexed citations

18.

Karhula, Kati, Andreas Henelius, Mikko Härmä, et al.. (2014). Job strain and vagal recovery during sleep in shift working health care professionals. Chronobiology International. 31(10). 1179–1189. 14 indexed citations

19.

Karhula, Kati, Mikko Härmä, Mikael Sallinen, et al.. (2013). Association of job strain with working hours, shift-dependent perceived workload, sleepiness and recovery. Ergonomics. 56(11). 1640–1651. 37 indexed citations

20.

Karhula, Kati, Mikko Härmä, Mikael Sallinen, et al.. (2013). Job Strain, Sleep and Alertness in Shift Working Health Care Professionals —A Field Study. Industrial Health. 51(4). 406–416. 28 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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