The phrase "scarce impact" is correct and usable in written English.
You can use it to describe a situation or an effect that is minimal, insignificant or slight. For example, "The new regulations had a scarce impact, as most people continued to operate their businesses as usual."
Considering the scarce impact those variables had on both perceived threatening factors and professional well-being, we decided to exclude them from the baseline model.
This model has been proposed and largely debated [34], [40], [41]: some authors consider the additive model widely used as sufficient to incorporate these effects[42], or argue about the scarce impact of such a scenario, but few papers address specifically this topic[43], [44].
Median TWA adsorptive clearance of β2m appeared to have scarce impact on overall solute removal (0.012 ml/minute, IQR -0.09 to 0.1, during hemofiltration versus -0.016 ml/minute, IQR -0.08 to 0.1 during dialysis; p = 0.79).
With job opportunities scarce, the impact is expected to be even greater in rural communities with a large proportion of jobs centred in big cities.
Information is scarce regarding the impact of treatment on Health-Related Quality of Life HRQLL) of patients with Head and Neck (H&N) cancers.
Since observing time on large, professional telescopes such as Keck or Hubble is always scarce, the Deep Impact scientists called upon "advanced amateur, student, and professional astronomers" to use small telescopes to make long-term observations of the target comet before and after impact.
However, the current literature remains scarce on the impact of parathyroid surgery on healthcare utilization and costs.
Population studies involving RE in Brazilians are scarce, and the impact of RE on VI has not been established.
In Spain, economic data on rotavirus are even more scarce, and its impact in terms of indirect costs is almost unknown [ 6, 16- 20].
Besides, several authors have reported that HIV-related variables had scarce or no impact on death in patients admitted to the ICU, although they have been closely related to the long-term outcome [ 5, 8, 13, 14].
While data are still scarce on the impact of implementing a default option since 2010, behavioral economics predicts that the application of default bias may move the needle toward reducing vertical transmission of HIV through breastfeeding.
