The phrase "a supplemental analysis" is correct and usable in written English.
It can be used when referring to an additional examination or evaluation that adds to the existing analysis of a subject or data set.
Example: "The researchers conducted a supplemental analysis to further explore the unexpected results of the initial study."
Alternatives: "an additional analysis" or "a complementary analysis".
Data from a long-term uncontrolled trial with 5,209 patients (6,950 patients-years) treated with celecoxib were included in a supplemental analysis.
A supplemental analysis suggests that our data are generally similar to HRT's data in our two low accuracy conditions and that their negative precision result is attributable to an unusual period effect in their coarse information system condition.
The Pew study cut off at the end of March of this year, but the team behind the report later conducted a supplemental analysis covering two weeks in July when two black men were separately killed by police and eight police officers were killed in a pair of targeted attacks.
In a supplemental analysis (not shown here), Model 3 was augmented by a set of indicators representing seven Occupational Categories.
In a supplemental analysis, we investigate the labour market performance in terms of wages of rural-to-urban migrants to see whether it is in fact profitable for a rural worker to migrate to a city, given s/he could find employment in both rural and urban areas.
As a supplemental analysis, we also conducted a TDT test of association using WASP, and obtained a significant p-value of 0.0495 for rs1055061 with the major allele (G) overtransmitted and a non-significant p-value of 0.8185 for rs12433225.
As a final supplemental analysis, we compare the PPLR results obtained for different numbers of technical replicates on simulated data, showing that the ranking statistics improve with increasing numbers of replicates.
However, in the present case, supplemental analysis at a single variable nuclear locus failed to provide a clear answer.
Yoshizawa et al. (2002) note that this supplemental analysis included a smaller number of cases (220) and therefore lacks sufficient statistical power to detect an effect.
We believe that this supplemental analysis could add an important piece of knowledge.
Dan Richard, chairman of the High Speed Rail Authority, said that a supplemental alternatives analysis found no issues for the underground railway, in which some stretches could be as long as 16.3 miles.
