The phrase "a strong indicator for" is correct and usable in written English.
It can be used when discussing evidence or signs that suggest a particular outcome or conclusion.
Example: "The increase in temperature is a strong indicator for climate change."
Alternatives: "a significant sign of" or "a clear signal for".
Nevertheless, the simple growth of mortgage debt provides a strong indicator for housing price growth.
But salt sensitivity is also a strong indicator for hypertension and it is a highly hereditable trait.
But even though the virus has been appearing in mosquitoes that state officials tested from 91 permanent mosquito trap sites throughout Connecticut, the crows have ceased to be a strong indicator for it.
The speed at which a marker for prostate cancer grows is a strong indicator for how much risk a patient runs, even if the level is so low that a biopsy ordinarily would not be ordered, researchers have found.
Statistically, the ASC awards don't serve as a strong indicator for who will win the equivalent best cinematography Oscar at the Academy Awards: in the organization's 30-year history, only 12 winners of the top theatrical prize have gone on to claim that honor.
Mammogram tissue density has been found to be a strong indicator for breast cancer risk.
To be fair, the second quarter is usually a stronger indicator for tablet sales, say Stephen Baker, vice-president of industry analysis at NPD Group, a market research group.
The TCA showed the strongest correlation with other traits and was therefore a representative measurement for tree vigour, becoming a stronger indicator for overall tree size with each annual growth cycle (Fig. 4).
The number of searches made on Google for the term 'data' could be a strong indicator of demand for it.
Crowdfunding has proven a strong indicator of potential for many seed-stage funds.
This parameter takes the very high value (xi=0.999) in the PON R&C network, which is a strong indicator of robustness for the relations between vertices, especially in a graph with small density (rho=0.017) as the one under examination.
