Comparison of Hemoglobin Levels between Point-of-Care Testing and Automated Hematology Analyzer in Patients at Samutsakhon Hospital

Authors

  • Thirunda Suttipong Samut Sakhon Hospital
  • Chaiyot Rangubpai
  • Pradthana Porntrai

Keywords:

Hemoglobin, Point of care testing (POCT), Automated hematology analyzer, Comparative analysis, Test result correlation

Abstract

Objective: To compare hemoglobin (Hb) measurement results between a point-of-care testing (POCT) device and an automated cell counter in a central laboratory.

Methods: This analytical study included 50 participants whose Hb levels were measured using both a POCT device and an automated cell counter. The results were compared using mean difference analysis, Pearson correlation, and Bland-Altman plots.

Results: The mean Hb level measured by the POCT device was 12.0 ± 2.5 g/dl, while that measured by the automated cell counter was 12.7 ± 2.6 g/dl, with no statistically significant difference (p > .05). Pearson correlation analysis demonstrated a very high positive correlation (r = 0.993; p < .001). Bland-Altman analysis showed a mean difference of -0.71 g/dl (95% CI: -0.80 to -0.62; p < .001), indicating a slight negative bias from the POCT device.

Conclusion: The POCT device demonstrated high agreement with the automated cell counter and can be considered a reliable alternative for Hb measurement, particularly in settings where rapid results are required.

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Published

2026-04-03

How to Cite

1.
Suttipong T, Rangubpai C, Porntrai P. Comparison of Hemoglobin Levels between Point-of-Care Testing and Automated Hematology Analyzer in Patients at Samutsakhon Hospital. Reg 4-5 Med J [internet]. 2026 Apr. 3 [cited 2026 Aug. 31];45(1):79-88. available from: https://he02.tci-thaijo.org/index.php/reg45/article/view/278580