Stefan Ma

66.1k total citations · 2 hit papers
115 papers, 5.1k citations indexed

About

Stefan Ma is a scholar working on Epidemiology, Public Health, Environmental and Occupational Health and Modeling and Simulation. According to data from OpenAlex, Stefan Ma has authored 115 papers receiving a total of 5.1k indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Epidemiology, 24 papers in Public Health, Environmental and Occupational Health and 23 papers in Modeling and Simulation. Recurrent topics in Stefan Ma's work include COVID-19 epidemiological studies (23 papers), Diabetes, Cardiovascular Risks, and Lipoproteins (20 papers) and Health disparities and outcomes (17 papers). Stefan Ma is often cited by papers focused on COVID-19 epidemiological studies (23 papers), Diabetes, Cardiovascular Risks, and Lipoproteins (20 papers) and Health disparities and outcomes (17 papers). Stefan Ma collaborates with scholars based in Singapore, United States and United Kingdom. Stefan Ma's co-authors include E Shyong Tai, Suok Kai Chew, S K Chew, C.T. Tan, Derrick Heng, Lyn James, Chorh Chuan Tan, Marc Lipsitch, Ben S. Cooper and Ted Cohen and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Stefan Ma

110 papers receiving 4.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Transmission Dynamics and Control of Severe Acute Respiratory Syndrome

2003 1.0k citations Stefan Ma, Lyn James et al. profile →
Can We Apply the National Cholesterol Education Program Adult Treatment Panel Definition of the Metabolic Syndrome to Asians?

2004 712 citations Stefan Ma, E Shyong Tai et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Stefan Ma Singapore	34	1.5k	1.4k	1.1k	1.1k	884	115	5.1k
Suok Kai Chew Singapore	27	1.0k 0.7×	864 0.6×	725 0.6×	945 0.9×	509 0.6×	36	3.3k
Arul Earnest Australia	41	997 0.7×	289 0.2×	984 0.9×	1.2k 1.1×	478 0.5×	261	6.3k
Sotirios Tsiodras Greece	50	2.3k 1.6×	514 0.4×	1.0k 0.9×	4.1k 3.8×	456 0.5×	316	9.7k
Justin Clark Australia	34	783 0.5×	455 0.3×	749 0.7×	995 0.9×	313 0.4×	155	5.3k
Douglas Fleming United Kingdom	51	5.4k 3.7×	807 0.6×	540 0.5×	1.4k 1.3×	393 0.4×	158	8.0k
Ran D. Balicer Israel	42	1.3k 0.9×	781 0.6×	675 0.6×	3.4k 3.1×	347 0.4×	261	8.8k
Laura C. Rosella Canada	46	2.0k 1.4×	292 0.2×	1.1k 0.9×	1.1k 1.0×	448 0.5×	328	7.5k
Mirjam J. Knol Netherlands	37	2.0k 1.4×	215 0.2×	669 0.6×	698 0.6×	712 0.8×	171	7.0k
André Charlett United Kingdom	51	2.6k 1.8×	757 0.5×	718 0.6×	3.3k 3.0×	148 0.2×	275	9.7k
Pui Hing Chau Hong Kong	30	811 0.6×	1.1k 0.8×	683 0.6×	1.3k 1.2×	95 0.1×	189	5.1k

Countries citing papers authored by Stefan Ma

Since Specialization

Citations

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

Fields of papers citing papers by Stefan Ma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stefan Ma. 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 Stefan Ma. The network helps show where Stefan Ma may publish in the future.

Co-authorship network of co-authors of Stefan Ma

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Asharani, P. V., Edimansyah Abdin, Kumarasan Roystonn, et al.. (2025). Tracking the Prevalence of Depression Among Older Adults in Singapore: Results From the Second Wave of the Well‐Being of Singapore Elderly Study. Depression and Anxiety. 2025(1). 9071391–9071391.

Tysinger, Bryan, Hwee Lin Wee, Mythily Subramaniam, et al.. (2025). Disease burden, lifetime healthcare cost and long-term intervention impact projections among older adults in Singapore. Nature Aging. 5(7). 1358–1369.

Jeyagurunathan, Anitha, Rajeswari Sambasivam, Edimansyah Abdin, et al.. (2025). Personal Well-Being Index (PWI) and its Association with Physical Health, Mental Health and Leisure Activities: Results from the Health and Lifestyle Survey. Journal of Happiness Studies. 26(4).

Ma, Stefan, Peter Knapp, & Paul Galdas. (2025). N25 A qualitative study exploring health professionals’ experiences and understanding of the sexual health and associated care needs in men with Inflammatory Bowel Disease. Journal of Crohn s and Colitis. 19(Supplement_1). i2480–i2480. 1 indexed citations

Subramaniam, Mythily, Rajeswari Sambasivam, Edimansyah Abdin, et al.. (2024). Prevalence of consumption of illicit drugs and associated factors from a nationwide epidemiological survey: The Singapore Health and Lifestyle Survey. Annals of the Academy of Medicine Singapore. 53(4). 222–232. 5 indexed citations

Chow, Wai Leng, et al.. (2023). The societal cost of modifiable risk factors in Singapore. BMC Public Health. 23(1). 1285–1285. 6 indexed citations

Huang, Liping, Gaoxi Xiao, Hechang Chen, et al.. (2022). Geographical clusters of dengue outbreak in Singapore during the Covid-19 nationwide lockdown of 2020. Scientific Data. 9(1). 547–547. 8 indexed citations

Chen, Piao, Xiuju Fu, Stefan Ma, et al.. (2020). Early dengue outbreak detection modeling based on dengue incidences in Singapore during 2012 to 2017. Statistics in Medicine. 39(15). 2101–2114. 6 indexed citations

Jiang, Peng, Xiuju Fu, Yee Van Fan, et al.. (2020). Spatial-temporal potential exposure risk analytics and urban sustainability impacts related to COVID-19 mitigation: A perspective from car mobility behaviour. Journal of Cleaner Production. 279. 123673–123673. 91 indexed citations

10.

Tariq, Amna, Yiseul Lee, Kimberlyn Roosa, et al.. (2020). Real-time monitoring the transmission potential of COVID-19 in Singapore, March 2020. BMC Medicine. 18(1). 166–166. 82 indexed citations

11.

Yap, Jonathan, Yixiang Ng, Khung Keong Yeo, et al.. (2019). Particulate air pollution on cardiovascular mortality in the tropics: impact on the elderly. Environmental Health. 18(1). 34–34. 49 indexed citations

12.

Ng, Yixiang, Tze Minn Mak, Constance Low, et al.. (2019). Evaluating the effectiveness of the influenza vaccine during respiratory outbreaks in Singapore’s long term care facilities, 2017. Vaccine. 37(29). 3925–3931. 12 indexed citations

13.

Lim, Wei‐Yen, Stefan Ma, Derrick Heng, et al.. (2018). Screening for diabetes with HbA1c: Test performance of HbA1c compared to fasting plasma glucose among Chinese, Malay and Indian community residents in Singapore. Scientific Reports. 8(1). 12419–12419. 46 indexed citations

14.

Zhang, Tianyou, Xiuju Fu, Stefan Ma, et al.. (2012). Evaluating Temporal Factors in Combined Interventions of Workforce Shift and School Closure for Mitigating the Spread of Influenza. PLoS ONE. 7(3). e32203–e32203. 17 indexed citations

15.

Wee, Hwee Lin, Jeannette Lee, Stefan Ma, et al.. (2012). Association of anthropometric measures with SF-36v2 PCS and MCS in a multi-ethnic Asian population. Quality of Life Research. 22(4). 801–810. 8 indexed citations

16.

Yang, Lin, Stefan Ma, Jian He, et al.. (2011). Influenza associated mortality in the subtropics and tropics: Results from three Asian cities. Vaccine. 29(48). 8909–8914. 54 indexed citations

17.

Ong, Sok King, C W Fong, Stefan Ma, et al.. (2009). Longitudinal study of the socio-demographic determinants of changes in body weight and waist circumference in a multi-ethnic Asian population. International Journal of Obesity. 33(11). 1299–1308. 22 indexed citations

18.

Lee, Jeannette, Derrick Heng, Stefan Ma, et al.. (2008). The metabolic syndrome and mortality: the Singapore Cardiovascular Cohort Study. Clinical Endocrinology. 69(2). 225–230. 31 indexed citations

19.

Kuk, Anthony Y. C. & Stefan Ma. (2005). The estimation of SARS incubation distribution from serial interval data using a convolution likelihood. Statistics in Medicine. 24(16). 2525–2537. 24 indexed citations

20.

Ma, Stefan, et al.. (2004). Economic burden of varicella in Singapore--a cost benefit estimate of implementation of a routine varicella vaccination.. PubMed. 35(3). 693–6. 13 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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