The phrase "are attributable to variations" is correct and usable in written English.
It can be used when discussing the causes or reasons for differences or changes in a particular context, such as research findings or statistical data.
Example: "The discrepancies in the results are attributable to variations in the experimental conditions."
Alternatives: "are due to differences" or "can be linked to variations".
However, the extent to which such associations between depressive symptoms and health service utilization are attributable to variations in comorbidity and prognostic disease severity is unknown.
In the experiment presented in this paper, differences in anthocyanin pigmentation across fruit of nine grapevine cultivars are attributable to variations of the peculiar pattern of expression for the global set of anthocyanin genes.
It has been shown that variations in the lengths of homopolymeric tracts are attributable to variations in the DNA template population and are not an artefact of the sequencing process, although this may be influenced by the length of repeat and the experimental conditions [ 33].
The differences observed in the mite killing properties of clove, nutmeg and ylang ylang oils are attributable to variation in their chemical compositions as reported in previous studies.
To investigate whether the results in Figure 6A are attributable to variation in hxHb expression levels in the different strains, expression was measured independently by recording the CO-difference spectrum of each [80].
Studies indicate that temporal changes in selection are attributable to variation in environmental and ecological factors, such as changes in climate, sex ratio or density [ 1, 8, 9].
If the immediate reward is constantly €10 and the delayed reward is varied in its amount and delay, differences in SCP amplitude are attributable to variation of the delayed reward only.
Because most KSHV studies are based on polymerase chain reaction (PCR) analysis, the conflicting data may be attributable to variations in the methods, primer sets, and target sequences selected.
We believe that the wide reported ranges of sensitivity and specificity for anal cytology are likely to be attributable to variations in operator performance as well as to extent of disease sampled by both cytology and biopsy.
