Feasibility and Accuracy of a Three-Parameter Nomogram in Adult Weight Prediction: A Pilot Study

Bibinlal O

Abstract: Background: Accurate prediction of body weight is essential in clinical practice, particularly when direct measurement is not feasible. A three-parameter nomogram has been developed for weight estimation, but its accuracy requires validation in adult populations. Aim: To validate and assess the accuracy of a three-parameter nomogram in predicting body weight among adult healthcare professionals at AIIMS, New Delhi. Methods: A cross-sectional pilot study was conducted among 30 healthcare professionals. Socio-demographic data and anthropometric measurements (height, waist circumference, hip circumference) were collected. Actual body weight was measured using a standard calibrated weighing scale, and predicted weight was calculated using the three-parameter nomogram. Statistical analysis included descriptive statistics, correlation analysis, regression analysis, paired t-test, and Bland?Altman analysis. Results: The mean age of participants was 35.6 ? 9.86 years, with the majority being male (53.3%) and married (66.7%). The mean actual body weight was 68.63 ? 14.70 kg, while the mean nomogram-predicted weight was 67.43 ? 15.32 kg. A strong positive correlation was observed between actual and predicted weights (r = 0.953, p = 0.001). Regression analysis showed that 97.6% of the variance in actual body weight could be explained by nomogram-predicted weight (R? = 0.976). Bland?Altman analysis demonstrated good agreement between the two methods, with a mean difference of 1.2 kg (95% CI: -0.53 to 2.93). The paired t-test showed no statistically significant difference between actual and predicted weights (t = 1.416, p > 0.05). Conclusion: The three-parameter nomogram demonstrated high accuracy and agreement with actual body weight measurements, indicating its potential utility as a reliable tool for weight prediction in adults when direct measurement is not feasible. Further large-scale studies are recommended to confirm these findings.

Keywords: Bodyweight estimation, Nomogram, Anthropometric parameters

How to Cite?: Bibinlal O, "Feasibility and Accuracy of a Three-Parameter Nomogram in Adult Weight Prediction: A Pilot Study", Volume 14 Issue 9, September 2025, International Journal of Science and Research (IJSR), Pages: 1110-1113, https://www.ijsr.net/getabstract.php?paperid=SR25923210706, DOI: https://dx.doi.org/10.21275/SR25923210706