Longitudinal slope profiles derived for all 1:500 000 rivers of South Africa, including cross-border catchments extending into neighbouring countries. River main stems are identified by a unique reach
P-values generated from pairwise comparisons of mixed model analysis showing significant changes of mean sectorial VD in all 12 sectors between the measurement times for each retinal sublayer.
Ordinal cumulative link mixed models (CLMM) results for adjusted regression between study outcomes and time: intervention group based on multiple imputed data.
SCR_Other_Pain = Skin conductance responses when observing the other's pain; Self-Other SCR Difference = absolute difference between skin conductance responses when participants received pain themselv
