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Walter T. McNicholas

Walter T. McNicholas

D-Index & Metrics

Medicine

D-Index
80
Citations
31054
World Ranking
16934
National Ranking
47

Walter T. McNicholas publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Walter T. McNicholas sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 350 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Walter T. McNicholas D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Walter T. McNicholas sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 80 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Walter T. McNicholas is affiliated with University College Dublin in Ireland. Their research primarily focuses on medicine and neuroscience, with significant contributions also in physiology, endocrine and autonomic systems, pulmonary and respiratory medicine, experimental and cognitive psychology, and cognitive neuroscience.

The scientist's work covers several main topics, including:

  • Obstructive Sleep Apnea Research
  • Neuroscience of respiration and sleep
  • Tracheal and airway disorders
  • Sleep and Wakefulness Research
  • Sleep and related disorders
  • Cardiovascular and Diving-Related Complications
  • Sleep and Work-Related Fatigue

McNicholas has published extensively in key journals. Frequent publication venues include:

  • Journal of Sleep Research
  • European Respiratory Journal
  • Sleep Medicine
  • ERJ Open Research
  • Sleep Medicine Clinics

Among notable recent papers authored or co-authored by McNicholas are:

  • Obstructive sleep apnea: transition from pathophysiology to an integrative disease model, 2022, Journal of Sleep Research
  • On the rise and fall of the apnea−hypopnea index: A historical review and critical appraisal, 2020, Journal of Sleep Research
  • Bidirectional relationships of comorbidity with obstructive sleep apnoea, 2022, European Respiratory Review
  • European Respiratory Society guideline on non-CPAP therapies for obstructive sleep apnoea, 2021, European Respiratory Review
  • EAN/ERS/ESO/ESRS statement on the impact of sleep disorders on risk and outcome of stroke, 2020, European Respiratory Journal

Frequent co-authors collaborating with McNicholas include:

  • Ludger Grote
  • Johan Verbraecken
  • Jan Hedner
  • Özen K. Başoğlu
  • Jean-Louis Pépin

Best Publications

  • Standards for the diagnosis and treatment of patients with COPD: a summary of the ATS/ERS position paper

    B. R. Celli;W. MacNee;A. Agusti;Antonio R Anzueto

  • Sleep apnoea as an independent risk factor for cardiovascular disease: current evidence, basic mechanisms and research priorities

    McNicholas Wt;Bonsigore Mr

  • Selective Activation of Inflammatory Pathways by Intermittent Hypoxia in Obstructive Sleep Apnea Syndrome

    Silke Ryan;Cormac T. Taylor;Walter T. McNicholas

  • Obstructive sleep apnoea syndrome

    Patrick Lévy;Malcolm Kohler;Walter T. McNicholas;Ferran Barbé

  • An Official ATS Statement: Grading the Quality of Evidence and Strength of Recommendations in ATS Guidelines and Recommendations

    Holger J. Schünemann;Roman Jaeschke;Deborah J. Cook;William F. Bria

  • Long-term Effects of Nasal Continuous Positive Airway Pressure Therapy on Cardiovascular Outcomes in Sleep Apnea Syndrome

    Liam S. Doherty;John L. Kiely;Valerie Swan;Walter T. McNicholas

  • Hypoxemia in patients with COPD: cause, effects, and disease progression.

    Brian D Kent;Patrick D Mitchell;Walter T McNicholas

  • Upper airway morphology in patients with idiopathic obstructive sleep apnea

    Rivlin J;Hoffstein;Kalbfleisch J;McNicholas W

  • Predictors of Elevated Nuclear Factor-κB–dependent Genes in Obstructive Sleep Apnea Syndrome

    Silke Ryan;Cormac T. Taylor;Walter T. McNicholas

  • Obstructive apneas during sleep in patients with seasonal allergic rhinitis.

    Walter T. McNicholas;Susan Tarlo;Philip Cole;Noe Zamel

  • Cardiovascular disease in obstructive sleep apnoea syndrome: the role of intermittent hypoxia and inflammation.

    J F Garvey;C T Taylor;W T McNicholas

  • Diagnosis of obstructive sleep apnea in adults.

    Walter T. McNicholas

  • Systemic inflammation: a key factor in the pathogenesis of cardiovascular complications in obstructive sleep apnoea syndrome?

    S Ryan;C T Taylor;W T McNicholas

  • Predictive value of clinical features for the obstructive sleep apnoea syndrome

    P C Deegan;W T McNicholas

  • Pathophysiology of obstructive sleep apnoea

    P C Deegan;W T McNicholas

  • Cardiac rhythm disturbances in the obstructive sleep apnea syndrome: effects of nasal continuous positive airway pressure therapy.

    Joseph Harbison;Philip O’Reilly;Walter T. McNicholas

  • Recommendations for the management of patients with obstructive sleep apnoea and hypertension

    Gianfranco Parati;Carolina Lombardi;Jan Hedner;Maria R Bonsignore

  • Chronic obstructive pulmonary disease and obstructive sleep apnea: overlaps in pathophysiology, systemic inflammation, and cardiovascular disease.

    Walter T. McNicholas

  • Intranasal corticosteroid therapy for obstructive sleep apnoea in patients with co-existing rhinitis.

    J L Kiely;P Nolan;W T McNicholas

  • Cardiovascular risk factors in patients with obstructive sleep apnoea syndrome

    J L Kiely;W T McNicholas

Frequent Co-Authors

Jan Hedner
Jan Hedner Sahlgrenska University Hospital
Patrick Levy
Patrick Levy Grenoble Alpes University
Jean-Louis Pépin
Jean-Louis Pépin Grenoble Alpes University
Gianfranco Parati
Gianfranco Parati University of Milano-Bicocca
Cormac T. Taylor
Cormac T. Taylor University College Dublin
Claudio L. Bassetti
Claudio L. Bassetti University of Bern
Poul Jennum
Poul Jennum University of Copenhagen
Luigi Ferini-Strambi
Luigi Ferini-Strambi Vita-Salute San Raffaele University
Peretz Lavie
Peretz Lavie Technion – Israel Institute of Technology

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