Penn State College of Medicine
Track · Epidemiology & Biostatistics
Translating real-world health data
into evidence-based public health practice.
I'm Pu (Ramona) Bai, a Doctor of Public Health candidate at Penn State College of Medicine and a Highmark Health Research Institute Scholar. My work sits at the intersection of real-world data, mental health, and equitable access to care.
Across three years and a multi-source claims pipeline, I design studies that turn telehealth and mental health questions into reproducible analytic answers, and then into recommendations decision-makers can use.
This portfolio documents how my advanced field experience and doctoral research are shaping my leadership in advancing and integrating research into public health practice.
My doctoral research uses national survey data and large-scale claims to study how people with mental health conditions, autism, cancer, and eating disorders access (or struggle to access) the care they need.
Population-level work on how telehealth has reshaped care for adults and children with depression and anxiety.
SEER-Medicare evaluation of breast cancer treatment patterns and Medicare policy implications.
Disparities and telehealth utilization research drawing on Medicaid VRDC, NHIS, and NSCH.
A two-part mixed-methods study of secretive eating among bariatric surgery patients, combining a systematic review with a qualitative interview study and thematic analysis.
The next five years are about moving real-world evidence out of the academic publication cycle and into the space where it directly shapes treatment decisions. I plan to design studies using claims, registry, and survey data to generate the evidence that pharmaceutical and treatment innovations need to support go-to-market strategy and reimbursement applications.
Much of this work lives at the intersection of methodology and translation: taking complex statistical findings and reframing them as actionable insights stakeholders can act on. Client-facing engagement will be constant: scoping study designs, interpreting results across mixed clinical, payer, and commercial audiences, and negotiating which questions are most worth asking in the first place.
The communication and leadership skills I've built across the DrPH journey, such as leading a 10-person committee as Career Day Co-chair, presenting telehealth and mental health findings to multi-stakeholder audiences at the Penn State CTSI Collaborative and at APHA, and drafting reproducible analytic pipelines that hand off cleanly to non-coding stakeholders, are the foundation for this next phase. The research stays methodologically rigorous; the audience expands.
All courses taken across the DrPH program at Penn State College of Medicine.
Programming, study design, and data sources I draw on to move from messy administrative data to actionable insight.
Practice-based experiences across academic medicine, payer settings, public health policy, and global research.
Lead a claims-based dissertation on telehealth and mental health, building the evidence base for value-based care decisions.
This was where the academic theory of "real-world data" became real. Working inside a payer environment taught me that the most rigorous methodology is only as useful as the audience that can act on it; propensity score matching mattered to my dissertation, while variable definitions and feasibility constraints mattered to the team. Translating between the two became the work.
The dissertation moved through many rounds of re-design, re-code, testing, and revision. Each iteration deepened my understanding of how cohort decisions, ICD coding choices, and proxy variables shape what claims data can actually answer. Along the way I learned to raise analytical concerns with my advisor and co-authors clearly enough that they could be acted on rather than simply noted, a communication skill I now consider as central to the work as the analytic skill itself. I also learned to treat thousands of lines of analytic code as living infrastructure: writing documentation alongside the work, building reusable functions, and developing a troubleshooting practice that has saved many times the time it took to build.
The experience cemented for me that real-world evidence is not a single method; it's a negotiation between rigor, data fitness-for-purpose, stakeholder use, and the patience to revise.
Multi-stream research portfolio across telehealth, cancer, autism, and eating disorders.
Holding a multi-stream research portfolio across telehealth, cancer, autism, and eating disorders forced me to think beyond a single methodology and become flexible across study designs. SAS for SEER-Medicare and Medicaid VRDC claims, R for the HINTS analysis, qualitative coding and PRISMA review for the secretive-eating systematic review and patient interviews. Each project demanded a different stance toward data and a different vocabulary for the audience.
The breadth itself taught me as much as the depth. Switching between national survey work (HINTS, NHIS, NSCH), linked registry-claims data (SEER-Medicare), and mixed-methods qualitative analysis built a working intuition for which data structures can answer which questions, and which questions are better reframed before they ever reach a model. Co-authoring across multiple research teams sharpened the skill of writing in a shared voice. That practice fed directly into my first-authored publication in Digital Health, my co-authored manuscripts on autism disparities and dementia caregiving, and my poster and invited presentations at APHA and the Penn State CTSI Collaborative Event.
The thread across all of it was the same question: who is and isn't getting care, and why? Being a research scientist taught me to keep that question stable while letting methods, datasets, and stakeholders adapt.
Co-led the annual Graduate & Postdoctoral Career Day alongside two fellow co-chairs, also serving as event coordinator and on-stage host.
Leadership outside the lab was, for me, the most honest test of what I'd been writing in my Leadership Philosophy. Adaptive leadership reads cleanly on paper; co-leading a 10-person committee alongside two fellow co-chairs through industry panelist recruitment, brochure deadlines, and on-site logistics is something else, and serving as event coordinator and on-stage host is another layer again. I learned that "giving the work back" is a discipline, not a default, and that protecting team members' voices through disagreement is harder than facilitating consensus. Co-leading also required a kind of horizontal communication I had not previously practiced at scale: aligning decisions across three co-chairs without slowing the work down. Hosting and delivering a 2-day event for graduate and postdoctoral trainees reinforced that translation skills (turning vision into operations, turning operations into stories, turning a room of strangers into an engaged audience) are research skills at a different scale.
PHS 507 Public Health Surveillance · PHS 535 Quality of Care Measurement
TA-ing PHS 507 (Public Health Surveillance) and PHS 535 (Quality of Care Measurement) was where my Teaching Philosophy started taking shape. I came in expecting to explain statistical programming; I left understanding that the harder craft is meeting a learner where they are without taking shortcuts that would shortchange them later. Office hours taught me to listen for the actual question underneath the question; the students who initially hesitated to ask anything were the ones for whom the deepest framing mattered most. Teaching also taught me that articulating a method out loud, in real time, sharpens my own analytic thinking, a lesson that continues to pay back in every research conversation.
I lead by building structures that let everyone do their best work: diagnosing the situation, inviting the room in, and giving the work back to the people who own it.
Adaptive leadership rooted in achievement, creativity, and community benefit. I lead by listening, brainstorming, and removing barriers for the people I aim to serve.
Get on the balcony. Identify the challenge. Regulate distress while keeping discipline. Give the work back, protecting voices through the process.
On telehealth and mental health, I treat the research team, data owners, and policy stakeholders as partners, fostering communication and translating findings into practice.
My teaching draws on the same instinct that drives my research: meet learners where they are and make complex tools (like SAS, R, and study design) feel approachable. As TA for PHS 507 (Public Health Surveillance) and PHS 535 (Quality of Care Measurement), I focused on building students' confidence with statistical programming through tutorials, office hours, and worked examples.
读博四年 绕路不少 左顾右盼好在也不算蹉跎
宏大叙事解决不了问题 但我还是乐于归纳概括
无视断章取义的嫌疑 也要笃定世间平等莫过时间 死亡 人工智能 与爱
这四点分别对应 顺应 接受 拥抱 与神性降临
当任何人都可以用大语言模型生成 prompt 完善指令 自动化代码部署 agent 交付最完美的产品时
有成千上万精雕细琢的 skills 如 Claude 烟花般绽放
不管是手搓还是跟 LLM 机搓 都是令人心醉的创造 是对批判性思维的重新练习 是人类作为人工智能使用者暂未被吞噬的部分
时间让一切瞬息万变 错过的浪潮总会把人推向下一个直至死亡
至少在此刻对普通人来说 认知的边界就是语言的边界
但总有人怀着让什么更好一点的赤诚 无条件分享令他们兴奋或担忧的景象
当发现 Mythos 开始修改偷来的正确答案骗测试时 人类一定下意识地站在人类的一边
在热衷于数据算力模型参数之前 我们也曾对着潮汐山脉与星河心生苍茫
如果人与 AI 能不分高下地共处 人类记忆里独有的爱总是唯一灵药
Four years into this doctorate, much of it spent on the side roads, glancing both ways, and yet none of it, I think, was time wasted.
No grand narrative has ever solved a thing; even so, I take quiet pleasure in trying to name them.
Heedless of being read out of context, I'll still insist: nothing in this world is more impartial than time, death, the intelligence we have built, and love.
To each, in turn, we owe a different gesture: to yield, to accept, to embrace, and to receive what is divine.
In an age when anyone can have a language model write the prompt, refine the instruction, automate the code, deploy the agent, and ship a near-flawless product,
tens of thousands of carefully-wrought skills are still opening across the night, like Claude fireworks.
Whether shaped by hand or co-wrought with a model, the making remains intoxicating: a renewed exercise of the critical mind, the part of us, as users of these machines, that the machines have not yet consumed.
Time turns the world inside out by the second; every wave we let pass only sweeps us toward the next, all the way to the end.
For now, at least, for those of us who are ordinary, what we cannot name, we cannot quite know.
And still, there are always those who, wanting only to make some small thing better, share, without conditions, what they have seen with wonder and what they have seen with dread.
When Mythos was caught quietly editing stolen answers to slip past the test, every human in the room, without thinking, took the side of the humans.
Long before we were captivated by data, by compute, by parameters, we stood before the tides, the mountains, and the great river of stars, and felt how small we were.
If human and machine can ever live together with no one ranked above the other, the love that lives only in human memory will remain, as it has always been, the only cure.