For det observerede C12t i BENCHMRK 1 og 2 var variationskoefficienten (CV) for den inter- individuelle variabilitet = 212% og CV for den intra- individuelle variabilitet = 122%.
For observed C12hr in BENCHMRK 1 and 2 the coefficient of variation (CV) for inter-subject variability = 212% and the CV for intra-subject variability = 122%.