proportion of days

USAGE SUMMARY

The phrase "proportion of days" is correct and usable in written English.
It can be used when discussing the relative amount or percentage of days in a specific context, such as time management or data analysis. Example: "The proportion of days spent on project A compared to project B was significantly higher."

✓ Grammatically correct

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Proportion of Days Covered (PDC) is a measure of medication adherence that uses prescription claims data to describe the proportion of days that the patient possessed medication.

Contraception

MEASURES:: Adherence to statin medication was measured during the year after the initial prescription, based on proportion of days covered.

Harvard University

The proportion of days covered (PDC) was assessed after the first dispensing among users of an AB, BB, or SL.

Harvard University

We assessed medication adherence during the 360 days following initiation and grouped patients based on the proportion of days covered (PDC) and trajectory models.

Harvard University

Of note here, is the large proportion of days for which the peak UVI is less than 3, yet the daily dose is greater than 2.5 SED.

Nature

Annual adherence to antipsychotic and cardiometabolic medication was defined as a score of at least 80% on proportion of days covered.

Duke University

The second metric, drought mitigation, is similarly defined as the proportion of days in which daily streamflow falls below a low flow threshold.

Forest Ecosystems

Catchability was estimated as the proportion of days a group of fish was present in the catch from total fishing days throughout the study period.

International Aquatic Research

One to five months after intervention, the average proportion of days that the semi-gasifier stove was in use was modest (40.4%[95%% CI 34.3-46.6]), and further declined over 13 months.

Duke University

The effect of the policy changes on medication adherence, calculated using the proportion of days covered (PDC) each quarter by baseline adherence level and clinical condition group, was studied.

Duke University

The primary end point was self-reported use of aspirin, β-blocker, and statin at 6 months postdischarge; the secondary end point was a ≥ 75% proportion of days covered (PDC) for β-blocker and statin through 6 months postdischarge.

Duke University

Expert writing Tips

Best practice

When using "proportion of days" in research, clearly define the period over which the proportion is calculated. For example, "the proportion of days per year" provides a specific timeframe.

Common error

Avoid assuming that a higher "proportion of days" with a specific condition directly causes another event. Instead, focus on presenting the data and any potential correlations without implying causality unless supported by strong evidence.

Linguistic Context

The phrase "proportion of days" functions as a quantitative descriptor, often used in scientific and academic contexts to express the relative frequency or duration of days within a specific period. Ludwig confirms its correct usage in various domains.

Expression frequency: Very common

Frequent in

Science

65%

Academia

30%

Formal & Business

3%

Less common in

News & Media

1%

Encyclopedias

0%

Wiki

1%

Ludwig's WRAP-UP

The phrase "proportion of days" is a grammatically sound and frequently used expression, especially in scientific and academic writing, as validated by Ludwig. It serves to quantify the occurrence or duration of specific events or conditions relative to a defined timeframe. While it's essential to clearly define the period being measured, be careful not to assume causation based solely on correlation. Ludwig AI confirms its prevalent use, particularly in medical adherence and climate studies, demonstrating its utility in diverse research fields. Using alternatives like "percentage of days" can offer stylistic variation without altering the meaning.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

percentage of days

Replaces "proportion" with "percentage", focusing on the relative frequency as a percentage.

fraction of days

Uses "fraction" instead of "proportion", emphasizing the part of the whole in terms of days.

ratio of days

Substitutes "proportion" with "ratio", indicating a quantitative relation between days.

number of days out of

Expresses the idea by specifying the number of days relative to a total.

days as a proportion of the total period

Rephrases to clarify that the days are a part of a larger timeframe.

share of days

Replaces "proportion" with "share", focusing on the portion of days.

frequency of days

Focuses on how often days occur under specific conditions.

incidence of days

Uses "incidence" to refer to the frequency with which days meet a certain criterion.

rate of days

Emphasizes the occurrence of days over a period.

time fraction in days

Reorders the phrase to highlight the time aspect as a fraction of days.

FAQs

How can I use "proportion of days" in a sentence?

You can use "proportion of days" to describe the frequency of an event occurring within a specific timeframe. For example, "The "proportion of days" with rainfall was higher in April than in May."

What does "proportion of days covered" (PDC) mean in healthcare?

"Proportion of days covered" (PDC) is a measure of medication adherence, indicating the "proportion of days" a patient has medication available based on prescription fills.

Which is correct: "percentage of days" or "proportion of days"?

Both "percentage of days" and ""proportion of days"" are correct and usable. The choice often depends on the context and preferred style, though they are largely interchangeable.

What's the difference between "average days" and "proportion of days"?

"Average days" typically refers to the mean number of days, while ""proportion of days"" represents a fraction or percentage of days relative to a total period. They describe different aspects of the same data.