Andrew R. Willan

25.6k citations
264 papers · 17.4k indexed · 6 hit papers · h-index 61
Topics
Health Systems, Economic Evaluations, Quality of Life (66 papers)Statistical Methods in Clinical Trials (36 papers)Maternal and Perinatal Health Interventions (33 papers)

In The Last Decade

Andrew R. Willan

258 papers receiving 16.5k citations

Hit Papers

Planned caesarean section versus planned vaginal birth fo...1988202620002013200020031996199419884008001.2k

Peers

Andrew R. Willan
Comparison fields: 5 of 194
  • Pediatrics, Perinatology and Child Health 3.6k
  • Obstetrics and Gynecology 3.1k
  • Pulmonary and Respiratory Medicine 3.0k
  • Economics and Econometrics 2.6k
  • Public Health, Environmental and Occupational Health 2.5k
Replace Hude Quan with:
Hude Quan Canada
Kathy L. Aleš United States
John B. Wong United States
Yvonne Vergouwe Netherlands
Lars Pedersen Denmark
Mary E. Charlson United States
C. Seth Landefeld United States
C. David Naylor Canada
Vic Hasselblad United States
Reem A. Mustafa United States
Andrew R. Willan relative to Hude Quan Canada Hude Quan's profile →
Citations per field
00.5×6.6×
Hude Quan · 1×
Citations per year

Countries citing papers authored by Andrew R. Willan

Since Specialization
Citations

This map shows the geographic impact of Andrew R. Willan'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 Andrew R. Willan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Andrew R. Willan more than expected).

Fields of papers citing papers by Andrew R. Willan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Andrew R. Willan. 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 Andrew R. Willan. The network helps show where Andrew R. Willan may publish in the future.

Co-authorship network of co-authors of Andrew R. Willan

This figure shows the co-authorship network connecting the top 25 collaborators of Andrew R. Willan. A scholar is included among the top collaborators of Andrew R. Willan 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 Andrew R. Willan. Andrew R. Willan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
#WorkIndexed citations
1 4
2 2
3 71
4 7
5 74
6
Twin Birth Study Collaborative Group. Maternal outcomes at 3 months after planned caesarean section versus planned vaginal birth for twin pregnancies in the Twin Birth Study: a randomised controlled trial.
2
7 12
8
Statistical Analysis of Cost-Effectiveness Data.
105
9
A Randomized Trial of Planned Cesarean or Vaginal Delivery for Twin Pregnancybreakdown →
294
10
Clinical inertia in patients with T2DM requiring insulin in family practice.
108
11 1
12
Expected value of information and decision making in HTA
0
13 63
14 70
15 80
16
Induction of labour versus expectant management for prelabour rupture of the membranes at term: an economic evaluation. TERMPROM Study Group. Term Prelabour Rupture of the Membranes.
30
17 45
18 248
19
A program to enhance clinical use of MEDLINE. A randomized controlled trial.
34
20 58

About Andrew R. Willan

Andrew R. Willan is a scholar working on Statistics and Probability, Obstetrics and Gynecology and Pediatrics, Perinatology and Child Health, having authored 264 papers that have together received 17.4k indexed citations. Recurring topics across this work include Health Systems, Economic Evaluations, Quality of Life (66 papers), Statistical Methods in Clinical Trials (36 papers) and Maternal and Perinatal Health Interventions (33 papers). The work is most often cited by research in Obstetrics and Gynecology (3.1k citations), Internal Medicine (1.1k citations) and Pediatrics, Perinatology and Child Health (3.6k citations). Andrew R. Willan has collaborated with scholars based in Canada, United States and Australia. Frequent co-authors include Mary E. Hannah, Sheila Hewson, Ellen Hodnett, Walter J. Hannah, Andrew Briggs, Saroj Saigal, Simon Eckermann, Gordon Guyatt, Jeffrey S. Hoch and Amiram Gafni. Their work appears in journals such as New England Journal of Medicine, The Lancet and JAMA.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026