The phrase "a lack of relevant data" is correct and usable in written English.
It can be used when discussing insufficient or inadequate information that is pertinent to a particular topic or situation.
Example: "The research findings were inconclusive due to a lack of relevant data on the subject."
Alternatives: "insufficient relevant information" or "absence of pertinent data".
However, attempts to modify or influence food systems in ways that are more supportive of good nutrition have been stymied by a lack of relevant data.
Such questions are unlikely to be resolved empirically due to a lack of relevant data, and invite speculation rather than research.
Secondly, we were not able to distinguish between elective and emergency cesarean deliveries in our study due to a lack of relevant data, and further prospective research in this area is recommended.
Globally, there is very little previous research on regional energy demands, because of a lack of relevant data.
Finally, a lack of relevant data contributes to poor planning for addressing the felt needs of populations.
Minorities were targeted in the hGR study because of a lack of relevant data in these populations (Chung et al. 2009; Hawkins et al. 2004).
Policymakers find it "difficult to present a business case for investing in public health interventions, due to a perceived lack of relevant data".
However, they were not included in the review due a lack of relevant primary data focussing explicitly on patient neglect.
However, our wish to compare the underlying physiological and morphological reasons for this zonation was frustrated by a lack of relevant published data.
We do agree that our fit for the younger age groups is not as good as our excellent fits for the older – and more relevant – age groups and this finding might be due to a lack of relevant biological data for these age groups.
This, unfortunately, is not always the case (or even possible) due, as suggested by Thorne et al. [ 32, 80], to a lack of relevant published data, unpublished experiments and absence of more advanced protocols/apparatuses/techniques needed to conduct a particular experiment.
