The phrase "a stepwise decline in" is correct and usable in written English.
It can be used when describing a gradual decrease in a particular variable or measurement over time or in a sequence.
Example: "The study revealed a stepwise decline in the participants' performance as the difficulty of the tasks increased."
Alternatives: "a gradual decrease in" or "a progressive decline in".
T3 levels exhibited a stepwise decline in circulating levels during food deprivation.
We saw a stepwise decline in CLA-BSIs as we strategically introduced accessory interventions beyond the central line bundle.
A stepwise decline in the annual rates of susceptibilities to penicillin from 1981 to 2000 at National Taiwan University Hospital (disk susceptibility data from all sites of isolates) and a high prevalence (60%–84%) of clinical PNSSP isolates were noted throughout the island (disk susceptibility data from all sites of isolates) (12).
Compared to women who reached 39 weeks gestation, the rates of severe maternal and neonatal morbidity were higher among the women with spontaneous labour <39 weeks, consistent with studies showing a stepwise decline in adverse outcomes as gestation advances [ 2, 31].
A stepwise decline was recorded in the North Central throughout the study period while other regions had a rise in neonatal mortality between 1990 and 2003.
We included variables that reached univariate significance (P<0.05 two sided) in a stepwise multivariate logistic regression analysis (SAS option stepwise).
CSM typically manifests with a slow, progressive stepwise decline in neurologic function, including hand clumsiness and balance difficulties.
Those who developed epilepsy in their teens also had poor prognosis because of progressive epileptic encephalopathy leading to stepwise decline in motor and cognitive functions.
This stepwise decline in β-cell function with increasing FPG seems to be potentiated by higher BMI, a finding of particular importance in the context of the ever-escalating trajectory in childhood obesity.
Chikamoto, Y. et al. Predictability of a stepwise shift in Pacific climate during the late 1990s in hindcast experiments using MIROC.
In this way, the bead displacement in response to a stepwise change in force showed a rise time tr similar to that measured experimentally (20 ms).
