02062nas a2200265   4500000000100000008004100001260001000042653002700052653002200079653002700101653003100128100001100159700001000170700001000180700001000190700001200200700000900212700001100221700001100232245011500243856006400358300000900422520134000431022002501771       2024                            d  bWiley10adisease mapping method10adata completeness10asyndromic surveillance10aPublic Health Surveillance1 aLiao Y1 aShi Y1 aFan Z1 aZhu Z1 aHuang B1 aDu W1 aWang J1 aWang L00aA new disease mapping method for improving data completeness of syndromic surveillance with high missing rates  uhttps://onlinelibrary.wiley.com/doi/epdf/10.1111/tgis.13200  a1-143 a<p>Syndromic surveillance is a type of public health surveillance that utilizes nonspecific indicators or symptoms associated with a particular disease or condition to detect and track disease outbreaks early. However, data completeness has been a significant challenge for syndromic surveillance systems in many countries. Incomplete data may make it difficult to accurately identify anomalies or trends in surveillance data. In this study, a new disease mapping method based on a high‐accuracy, low‐rank tensor completion (HaLRTC) algorithm is proposed to estimate the quarterly positivity rate of the human influenza virus (IFV) based on highly insufficient 2010–2015 respiratory syndromic surveillance data from the subtropical monsoon region of China. The HaLRTC algorithm is a spatiotemporal interpolation method applied to fill in missing or incomplete data using a low‐rank tensor structure. The results show that the accuracy (R2 = 0.880, RMSE = 0.037) of the proposed method is much higher than that of three traditional disease mapping methods: Cokriging, hierarchical Bayesian, and sandwich estimation methods. This study provides a new disease mapping approach to improve the quality and completeness of data in syndrome surveillance or other familiar systems with a large proportion of missing data.</p>
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