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Authors’ Reply: The Anemia Risk Warning Model Based on a Noninvasive Method: Key Insights and Clarifications

Authors’ Reply: The Anemia Risk Warning Model Based on a Noninvasive Method: Key Insights and Clarifications

We sincerely appreciate your thoughtful and constructive comments on our recent paper exploring noninvasive anemia diagnosis through facial visible light reflectance spectroscopy and machine learning [1,2]. Your attention and insightful suggestions greatly guide our efforts to enhance this work. We address your key points below, offering clarifications as needed. You noted that uncontrolled factors like smoking and nutrition might influence anemia severity and spectral data.

Yahan Zhang, Yi Chun, Liping Tu, Jiatuo Xu

JMIR Med Inform 2025;13:e74333

The Anemia Risk Warning Model Based on a Noninvasive Method: Key Insights and Clarifications

The Anemia Risk Warning Model Based on a Noninvasive Method: Key Insights and Clarifications

We recently read with great interest the article by Zhang et al [1], which presents a noninvasive technique for diagnosing anemia using facial visible light reflectance spectroscopy, combined with machine learning (ML) algorithms for predictive modeling. Anemia is a widespread public health issue affecting over 1.7 billion people, with symptoms including fatigue and cognitive decline [2].

Jiaqi Wei, Nana Zheng, Depei Wu

JMIR Med Inform 2025;13:e73297

A Noninvasive Approach to Assess the Prevalence of and Factors Associated With Anemia Risk in Malaysian Children Under Three Years of Age: Cross-Sectional Study

A Noninvasive Approach to Assess the Prevalence of and Factors Associated With Anemia Risk in Malaysian Children Under Three Years of Age: Cross-Sectional Study

The global prevalence of anemia in 2019 was 39.8% in children aged 6‐59 months, with 269 million children having anemia, while in Malaysia, the prevalence of anemia was 24.6% in children of the same age [5]. In Malaysia, the current prevalence of anemia is approximately 46.5% among children, and 1 in 3 children ( Iron deficiency can occur without anemia; this occurs when the iron store is depleted while the individual is still having normal Hb levels.

Muhammad Yazid Jalaludin, Ho Bee Kiau, Suriati Hasim, Wai Khew Lee, Angie Low, Nik Harlina Nik Kazim, Jia Tse Hoi, Sri Wahyu Taher

JMIR Pediatr Parent 2025;8:e58586

A Risk Warning Model for Anemia Based on Facial Visible Light Reflectance Spectroscopy: Cross-Sectional Study

A Risk Warning Model for Anemia Based on Facial Visible Light Reflectance Spectroscopy: Cross-Sectional Study

According to the results of China’s fourth nutritional survey, the prevalence of anemia among Chinese residents is 20.1%, and the global prevalence of anemia in all ages is 22.8% in 2019 [4], indicating it has become an important public health issue. In a survey of 13,175 Chinese adults aged >50 years, the prevalence of anemia is 31%, indicating that anemia is particularly prevalent in China’s middle-aged and older adult population [5].

Yahan Zhang, Yi Chun, Hongyuan Fu, Wen Jiao, Jizhang Bao, Tao Jiang, Longtao Cui, Xiaojuan Hu, Ji Cui, Xipeng Qiu, Liping Tu, Jiatuo Xu

JMIR Med Inform 2025;13:e64204

Blood Management: A Current Opportunity in Perioperative Medicine

Blood Management: A Current Opportunity in Perioperative Medicine

This is a complex approach that focuses on three pillars: (1) optimizing patient hematopoiesis and enhancing red cell mass, (2) minimizing blood losses with improved source control and optimization of coagulopathy, and (3) enhancing patient tolerance to anemia [2].

Moises Auron

JMIR Perioper Med 2024;7:e57012

Survey of the Impact of Decision Support in Preoperative Management of Anemia (i-Anemia): Survey Study

Survey of the Impact of Decision Support in Preoperative Management of Anemia (i-Anemia): Survey Study

However, anemia has been identified as a modifiable risk factor for poor perioperative outcomes [8,9]. Preoperative anemia is relatively common, affecting 25% to 75% of patients with an increasing prevalence in older patients and those with cancer [10,11]. Consequently, the relationship between anemia and perioperative transfusion provides a related risk for perioperative morbidity and mortality [12-15].

Gaëtan Mignanelli, Richard Boyer, Nicolas Bonifas, Emmanuel Rineau, Yassine Moussali, Morgan Le Guen

JMIR Perioper Med 2023;6:e49186

The Effects of Intravenous Iron Infusion on Preoperative Hemoglobin Concentration in Iron Deficiency Anemia: Retrospective Observational Study

The Effects of Intravenous Iron Infusion on Preoperative Hemoglobin Concentration in Iron Deficiency Anemia: Retrospective Observational Study

Preoperative optimization is fundamental to improving surgical outcomes, with correction or improvement in iron deficiency anemia (IDA) being an important aspect in the preoperative management of patients undergoing major elective surgery [1]. This has resulted in a large drive across the United Kingdom for developing perioperative iron infusion pathways.

Guy Nicholls, Rajan Mehta, Karen McVeagh, Matthew Egan

Interact J Med Res 2022;11(1):e31082

mHealth for Anemia Reduction: Protocol for an Entertainment Education–Based Dual Intervention

mHealth for Anemia Reduction: Protocol for an Entertainment Education–Based Dual Intervention

Anemia diminishes work productivity [3,4], increases the risk of adverse birth outcomes [5], and hinders the healthy development of children of pregnant mothers with anemia [6]. It is often not explicitly identified by women, but they do report high levels of fatigue [3]. The reduction in anemia through normative innovations (RANI) project [2] investigates the potential of an adaptive, multilevel social norms–based behavior change intervention to reduce anemia among women of reproductive age in Odisha.

Ichhya Pant, Rajiv Rimal, Hagere Yilma, Jeffrey Bingenheimer, Erica Sedlander, Sibabrata Behera

JMIR Res Protoc 2021;10(11):e26252