A validation of the PAWPER XL-MAC tape for total body weight estimation in preschool children from low- and middle-income countries.

摘要: Importance The PAWPER tape system is one of the three most accurate paediatric weight estimation systems in world. The latest version tape, which does not rely on a subjective assessment habitus, XL-MAC method uses length and mid-arm circumference (MAC) to estimate weight. It was derived validated population USA has yet been fully from resource-limited setting. Objective objective this study evaluate performance large dataset sample children settings. Methods This “virtual” estimates were generated using Broselow 2007B 2011A editions very open access dataset. contained anthropometric information aged 6 59 months standardised nutritional surveys 51 low- middle-income countries. compared with new length- habitus-based Ralston method. Main outcomes measures bias methods assessed mean percentage error (MPE) precision 95% limits agreement (LOA) MPE. overall accuracy denoted by falling within 10% 20% actual (abbreviated as p10 p20 respectively). Results MPE for 1.9 (-15.3, 19.2), 5.4 (-15.9, 26.7), 7.7 (-13.3, 30.5) -0.7 (-20.2, 19.3) respectively. each 79.3% 96.9% 64.3% 91.0% 2007B, 55.5% 85.9% 67.4 94.0% statistically significantly more than 2011A, method. relative difference (p10) 43% (odds ratio 4.4 (4.4, 4.5), p<0.001), 23% 2.9 (2.8, 2.9), p<0.001) 18% 1.8 (1.8, 1.8), method, respectively. Conclusions relevance performed well both This substantial clinically important. did perform at extremes habitus-type, however, might benefit recalibration.