There was no statistically significant difference in F-wave latencies and persistencies between day 3 and 2 months (data not shown), or between the operated and unoperated leg (Table 2, Figures 1 and 2).
Heritability estimates for milk composition and somatic cell count persistency were between 0.03 and 0.2 [ 4, 20].
Stuart et al. reported a positive relationship between persistency to glucose lowering medication and decreased healthcare costs and lower hospitalization rates [ 8].
Uncontrolled variables related to disease severity or duration of symptoms or both, perceived benefits from treatment, or other unmeasured factors (including behavioral symptoms or medical comorbidity) may have influenced the observed relationship between persistency of drug use and outcomes.
We cannot rule out the possibility that selection factors related to disease severity or perceived benefits from treatment influenced the observed relationship between persistency of drug use and outcomes.
Reported heritability estimates for milk persistency in cattle were between 0.02 and 0.27 [ 19].
The highest correlations between lactation persistency and extended lactation were observed for milk, lactose and somatic cell yields (0.79-0.89, P ≤ 0.01) (Table 2).
The difference between them lies on the paradox between efficiency and persistency, constancy and change, or predictability and unpredictability (Holling 1996).
Even with a distinct between-drug difference in persistency, it is difficult to quantitate the effect of persistency on therapy cost, particularly across different health care delivery settings.
Two sets of economic weights between lactation milk and persistency and three levels of restriction on the intended gains in persistency were applied.
