Who offers SPSS assistance for factor analysis? I wanted to know about how to implement appropriate SPSS assistance to identify statistical patterns for analysis in the model. All of the variables were included in the test for nonlinear and continuous analysis on the basis of the SPSS software package. Only the variables that were statistically significant in the model for effect analyses were used in the results on the model. Additional Information {#s2} ====================== **How to cite this article**: Li, L. *et al.* Evaluation of NLO and N~ISP~ measurements of the ISP’s sensitivity threshold for factor analysis of serum markers. *Sci. Rep.* **6**, 33074; doi: 10.1038/srep33074 (2016). This study was supported by the National Center for Advancing Trans! Interdisciplinary Platform for Precision Diagnostics and Precision Medicine (ANR-14-CE11-0076), the Chinese Ministry of Health (2014Q02214), and supported by the Ministry of Health of Taiwan. **Author Contributions** L.L. designed and executed the experiment and F.S. provided the model. D.V.L. collected data and discussion.
Boostmygrades
L.C.Z., E.E.M., J.B.X., Z.L. and P.H.S. performed the model analysis. D.V.L. wrote the paper. 








