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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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ascertained based on a

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "ascertained based on a" is correct and usable in written English.
You can use it when discussing how a conclusion or decision is reached through specific criteria or information. Example: "The results were ascertained based on a thorough analysis of the data collected during the study."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

All subjects were ascertained based on a clinical diagnosis of DMD supported by the identification of a mutation in the DMD gene.

Science

Plosone

Chemotherapy regimens were ascertained based on a review of all HCPCS Level II codes for parenterally administered antineoplastic agents on medical claims with service dates within 6 days of the start of each cycle of chemotherapy.

A Charlson comorbidity score (the score does not include a gout diagnosis) was ascertained based on a range of diagnoses and procedures in the 12 months prior to the first ULD dispensing [ 19].

Prophylactic use of antimicrobial agents was ascertained based on a medical claim for administration of drug from cycle day 1 to cycle day 5, or a pharmacy claim for a filled prescription from cycle day -3 to cycle day 5, with a corresponding drug code.

The large difference in number of SNPs that were retained for each population is explained by the fact SNPs on the Illumina PorcineSNP60K Beadchip were primarily ascertained based on a small panel of western pig genomes and that more SNPs had a MAF less than 0.01 for the Chinese Erhualian dataset than for western DLY dataset.

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

Families were not ascertained based on any phenotype.

Science

Plosone

Participants were not ascertained based on any phenotypes.

In order to maximize the utility of this sample for the study of multiple common traits, families were not ascertained based on any phenotypes.

The date of first diagnosis of DR or DMP also was ascertained based on all information available, including that provided by the PCPs in their responses to questionnaires and copies of ophthalmology records provided.

Receipt of chemotherapy was ascertained based on the presence of one or more claims for a chemotherapy drug or administration, which were identified using HCPCS and ICD-9-CM codes in the healthcare claims database.

We ascertained a range of characteristics, including psychological comorbidities, hepatic comorbidities and risk factors, medications, and health care services, that were specified a priori and ascertained based on the presence of diagnoses, procedures, and pharmacy dispensings in the health care claims during the 12-month baseline.

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Expert writing Tips

Best practice

When using "ascertained based on a", ensure that the 'a' refers to a clearly defined and specific criterion or set of information.

Common error

Avoid overuse of the passive voice with "ascertained based on a". Where possible, rephrase to use an active voice for a more direct and engaging writing style. Instead of "The results were ascertained based on a review..." consider "We ascertained the results based on a review..."

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "ascertained based on a" functions as part of a predicate, specifying the foundation or criteria upon which a determination or conclusion is made. Ludwig AI validates its correct usage, demonstrating that it typically connects a finding with its evidential basis.

Expression frequency: Rare

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "ascertained based on a" is a grammatically correct way to express that a conclusion or determination was reached using specific criteria or information. According to Ludwig AI, the phrase is most commonly found in scientific contexts, emphasizing that findings are grounded in evidence. While the phrase is valid, it's important to be mindful of potential overuse of passive voice and to ensure clarity in the criteria being referenced.

FAQs

How can I use "ascertained based on a" in a sentence?

You can use "ascertained based on a" to describe how a conclusion or fact was determined using specific criteria or information. For example, "The diagnosis was ascertained based on a combination of symptoms and test results."

What are some alternatives to "ascertained based on a"?

Some alternatives include "determined by means of a", "established through a", or "concluded from a". Consider also "ascertained from a" for a shorter alternative.

Is it better to use active or passive voice with "ascertained based on a"?

While grammatically correct in passive voice, using active voice can often make your writing more direct and engaging. For example, instead of "The data were ascertained based on a survey", try "We ascertained the data based on a survey".

What does "ascertained based on a" imply about the information used?

Using "ascertained based on a" implies that the information or criteria used were carefully considered and reliable, leading to a well-supported conclusion.

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Source & Trust

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Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: