Sankanagoudar Shrimanjunath, Tomo Sojit, Syiemlieh Andystar, Sharma Prem Prakash, Banerjee Mithu, Sharma Praveen
Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Basni Phase II, Jodhpur, Rajasthan 342005 India.
Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Jodhpur, Rajasthan India.
Indian J Clin Biochem. 2024 Oct;39(4):579-585. doi: 10.1007/s12291-023-01142-3. Epub 2023 Jul 7.
Various formulae had been derived to calculate the LDL-C from other lipid profile parameters to supplant the need for direct estimation. Martin's, Sampson's, and Cordova's formulae are recently derived formulae for calculating LDL-C. However, no study has been undertaken till now to verify the newer formulae viz. Martins's and Sampson's in Indian population. The retrospective cross-sectional study was carried out after obtaining approval from the Institutional Ethics Committee on human subject research. The lipid profile data were collected for a period of 17 months from January 2020 to May 2021. The formulae proposed by Friedewald, Cordova, Anandaraja, Martin, and Sampson were used to assess calculated LDL-C. Intraclass correlations were performed to assess the effectiveness of each formula when compared with direct estimation. In our study, we observed that LDL-C calculated using Martin was observed to be closer to that of direct estimation. The bias observed was lowest for Martin's formulae, followed by Sampson's. Intraclass correlation analysis for absolute agreement demonstrated Cordova, Martin, and Sampson to have an average ICC > 0.9, with Martin, and Sampson having a value < 0.05. Martin fared superior to other formulae in intraclass correlation in patients with LDL > 70. In patients with TG below 200 mg/dL, Martin, and Sampson had a significant correlation with comparable average ICC. However, in patients with TG > 300 mg/dL, Cordova appears to fare better than all other formulae. Our study demonstrated a distinctly superior performance of Martin's formula over Friedewald's formula in the Indian patient population.
已经推导出各种公式,可根据其他血脂参数来计算低密度脂蛋白胆固醇(LDL-C),以取代直接估算的需求。马丁公式、桑普森公式和科尔多瓦公式是最近推导出来的计算LDL-C的公式。然而,迄今为止尚未开展任何研究来验证这些新公式,即印度人群中的马丁公式和桑普森公式。在获得机构人类受试者研究伦理委员会的批准后,开展了这项回顾性横断面研究。从2020年1月至2021年5月收集了17个月的血脂数据。使用弗里德瓦尔德、科尔多瓦、阿南达拉贾、马丁和桑普森提出的公式来评估计算得出的LDL-C。进行组内相关性分析,以评估每个公式与直接估算相比的有效性。在我们的研究中,我们观察到使用马丁公式计算出的LDL-C与直接估算值更接近。观察到的偏差中,马丁公式最低,其次是桑普森公式。绝对一致性的组内相关性分析表明,科尔多瓦、马丁和桑普森的平均组内相关系数(ICC)>0.9,马丁和桑普森的P值<0.05。在LDL>70的患者中,马丁在组内相关性方面优于其他公式。在甘油三酯(TG)低于200mg/dL的患者中,马丁和桑普森与可比的平均ICC具有显著相关性。然而,在TG>300mg/dL的患者中,科尔多瓦似乎比所有其他公式表现更好。我们的研究表明,在印度患者群体中,马丁公式的表现明显优于弗里德瓦尔德公式。