Fig. 2
From: Time-varying associations between prenatal metal mixtures and rapid visual processing in children
Plot showing the relationship between RVP latency and the (a) JWQS and (b) MWQS indices. Both plots are locally estimated scatterplot smoothing (LOESS) plots. The individual points in both plots are residuals accounting for the covariates: child age, child gender, maternal socio-economic status and age of the mother at recruitment. The WQS index estimated using JWQS was significantly and nonlinearly associated with the latency in the RVP (β [95%CI], p-value: 0.19 [0.03, 0.35], p < 0.05) for the linear term and (− 0.02 [− 0.04, − 0.00], p < 0.05) for the quadratic term. The WQS index estimated using MWQS was marginally linearly associated with the latency in the RVP (0.02 [− 0.00, 0.03], p < 0.10). Ln: Natural log