Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
as previously documented
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as previously documented" is correct and usable in written English.
It can be used when referring to information or details that have been recorded or mentioned earlier in a document or discussion. Example: "The results of the experiment were consistent with the findings as previously documented in our last report."
✓ Grammatically correct
Science
Alternative expressions(20)
as noted earlier
as mentioned before
as previously reported
as already stated
as mentioned previously
as established earlier
as noted before
it has been documented that
as demonstrated earlier
as we have seen
as shown above
previously established
as previously guided
as previously outlined
as previously communicated
as previously noticed
as previously conducted
as previously confirmed
as previously demonstrated
as previously identified
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Concentration of catechin used in the present study was based on the proportion of catechin in crude extract as previously documented [11].
Science
Phylogenetic analysis classified SmPrx6 into the 1-Cys-Prx cluster, and quantitative real-time PCR (qPCR) demonstrated constitutive mRNA expression in all tested tissues and during five different embryonic developmental stages, as previously documented in other cephalopods.
Inert RNAs are indicative of a block of the NaIO4 reaction suggesting a 3′ modification of certain DXZ4 small RNAs, potentially analogous to as previously documented for piRNAs.
Science
As previously documented, even bloody Taylor Swift is a certified fan.
News & Media
The beneficial effect of BCG in humans, as previously documented in mouse experiments, could be due to an induction of the beneficial Treg cells.
Science & Research
As previously documented, this microstructure effect is negligible in the infinitesimal elastic domain, but it is significantly magnified along the time, when the viscoelastic effects take place.
This suggests an effect of peripheral speciation, as previously documented in the Hawaiian reef fish fauna, relative to other sites in the tropical western Pacific.
Science
As previously documented, despite plentiful organic carbon export, only 10 20% of primary production reaches the surface sediment over the Chukchi Shelf in summer [50, 51].
Science
As previously documented in the CQI literature, sites participating in research often struggle with continuing change efforts beyond the period of project involvement (Aarons et al. 2011; Scheirer and Dearing 2011).
Science
As previously documented, several mycorrhizal fungi are closely associated with the soil P cycle (Smith et al. 2011), and provide the plant hosts with P in the typically available form of phosphate.
Science
The water samples were not analyzed for steroid hormones prior to oxidation experiments since their concentrations are orders of magnitude lower than the concentration spiked during the bench-scale experiments, as previously documented [43].
Science
Expert writing Tips
Best practice
Use "as previously documented" to build upon existing knowledge and avoid unnecessary repetition. It helps to maintain clarity and conciseness in writing.
Common error
Avoid using "as previously documented" without providing a specific reference or clear indication of where the information was previously documented. This can lead to confusion and undermine the credibility of your writing.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as previously documented" functions as an adverbial phrase, modifying a clause by indicating that the information being presented has been recorded or established in earlier sources. Ludwig provides numerous examples of its use in various academic and scientific contexts.
Frequent in
Science
95%
Formal & Business
3%
News & Media
2%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "as previously documented" is a common adverbial phrase used to reference information or findings that have been recorded in earlier sources. Ludwig AI confirms its grammatical correctness and usability in formal writing, particularly within scientific and academic contexts. While effective for concisely referencing existing knowledge, it's crucial to provide clear citations to ensure transparency and avoid ambiguity. Alternatives such as ""as previously reported"" or "as already stated" can be used depending on the specific context and level of formality required. The phrase's frequency and authoritative source usage underscore its reliability in academic and professional settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as previously reported
Emphasizes that the information has been formally reported, often in a published source.
as mentioned previously
Similar to "as previously documented" but with a slightly less formal tone.
as already stated
Highlights that the information has been mentioned earlier in the current context.
as established earlier
Indicates that something has been firmly established or proven at a prior point.
as noted before
A more informal way of indicating that something has been mentioned earlier.
it has been documented that
A more formal and emphatic way of indicating that something is already recorded.
as demonstrated earlier
Specifically refers to a prior demonstration or proof of something.
as we have seen
Refers back to something that has been observed or understood in the preceding text.
as shown above
Used when referring to a visual or textual element presented earlier in the document.
previously established
Highlights that some concept or method has already been agreed upon or proved.
FAQs
How can I use "as previously documented" in a sentence?
Use "as previously documented" to refer to information or findings that have been recorded or mentioned earlier in a text or in other sources. For instance, "The efficacy of this treatment, as previously documented, is significantly higher in younger patients."
What's the difference between "as previously documented" and "as previously reported"?
"As previously documented" indicates that something has been recorded, while ""as previously reported"" suggests that information has been formally reported, often in a published source. The former has a broader application and encompasses all kinds of documents.
Are there more formal alternatives to "as previously documented"?
Yes, more formal alternatives include "it has been documented that" or "according to prior documentation". These alternatives are suitable for academic or professional writing.
Is it necessary to cite the original source when using "as previously documented"?
Yes, it is best practice to cite the original source to provide context and allow readers to verify the information. This enhances the credibility and transparency of your writing.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested