3 days apart

USAGE SUMMARY

The phrase "3 days apart" is correct and usable in written English.
You would typically use this phrase to describe an interval between two events. For example, "The two meetings are taking place 3 days apart."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

42 human-written examples

However, examination of 24-hr voids collected 3 days apart indicates that this between-day stability was limited, with 65% of total variance attributed to within-child variability (Table 3).

Environmental Health Perspectives

Although we observed strong correlations between full-day 24-hr samples and same-day spot samples (see Pearson correlations, Table 2), there was weak correlation between DAP metabolite levels in 24-hr samples collected 3 days apart or in spot samples collected > 1 day apart, with correlations weaker for DE compared with DM DAP metabolites.

Environmental Health Perspectives

Although total DAP concentrations in single spot urine samples were moderately to strongly associated with concentrations in same-day 24-hr samples (r ≈ 0.6 0.8, p < 0.01), concentrations in spot samples collected > 1 day apart and in 24-hr samples collected 3 days apart were weakly correlated (r ≈ –0.21 to 0.38).

Environmental Health Perspectives

15 animals were fed three times, 3 days apart, and amputations were done the following day.

eLife

However, we found that 65% of the total variance in 24-hr urine samples collected 3 days apart was due to within-child between-day variability, even though the 24-hr samples reflect complete sampling with no within-day variability (i.e., the entire sample was collected).

Environmental Health Perspectives

The rTMS sessions were at least 3 days apart.

Nature

Human-verified similar examples from authoritative sources

Similar Expressions

18 human-written examples

Sixty-two female students, aged 18 55 years, took part in a within-subject experiment, attending in counterbalanced satiated and food-deprived states, 2 3 days apart.

Appetite

They are 10 days apart.

The Guardian - Books

They died 38 days apart.

The New York Times

Visits/mailings were scheduled 28 to 30 days apart.

Journal of the American Dietetic Association

Children under 9 require two doses about 60 days apart.

The New York Times

Expert writing Tips

Best practice

When describing medical treatments or scientific experiments, use "3 days apart" to clearly specify the timing and frequency of interventions.

Common error

Avoid using a hyphen when "3 days" is used as an adverbial phrase. It is only necessary to use a hyphen when it acts as an adjective before a noun (e.g., "a three-day conference").

Linguistic Context

The phrase "3 days apart" functions as an adverbial phrase, modifying a verb by specifying the temporal distance between two events. Ludwig AI confirms its correct usage.

Expression frequency: Very common

Frequent in

Science

75%

News & Media

20%

Formal & Business

5%

Less common in

Wiki

0%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, the phrase "3 days apart" is a grammatically sound and widely used adverbial phrase to denote a temporal gap between events. Ludwig AI confirms that it is correct. Predominantly found in scientific and news contexts, it serves to clarify the precise timing of events. When writing, ensure you use the hyphen correctly, only when acting as an adjective. For similar meanings, consider alternatives like "separated by three days". Overall, using "3 days apart" correctly enhances clarity and precision in describing time intervals.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

separated by three days

Emphasizes the separation between two points in time, specifying the duration of that separation.

with a three-day interval

Highlights the interval or gap between events, focusing on the duration as a defined period.

three days in between

Indicates that a period of three days occurs between two specific events or points in time.

at an interval of three days

Specifies the regular spacing between recurring events, clarifying that the interval is consistent.

spaced three days apart

Focuses on the arrangement or distribution of events over time, ensuring they are not consecutive.

three days elapsing between

Emphasizes the passing of time, indicating that three days go by from one event to the next.

a three-day gap

Simple and direct way to describe an interval, more casual than 'interval of three days'.

occurring three days subsequently

Highlights sequence and the passing of a specific time before the next event, emphasizes timing

separated by a period of three days

Similar to "separated by three days" but more formal and verbose.

following a three-day delay

This describes the gap as a delay, implying a planned or expected schedule.

FAQs

How should I correctly use "3 days apart" in a sentence?

Use "3 days apart" to indicate a time interval between two events. For instance, "The injections were administered "3 days apart"."

What are some alternative ways to express "3 days apart"?

You can use phrases like "separated by three days", "with a three-day interval", or "spaced three days apart" depending on the context.

Is it correct to say "three-day apart"?

No, "three-day apart" is not grammatically correct. The correct phrase is ""3 days apart"", unless you're using it as an adjective (e.g., a three-day event).

What is the difference between "3 days apart" and "every three days"?

""3 days apart"" indicates the space between two specific events, while "every three days" specifies a recurring frequency. For example, "The meetings were "3 days apart"" versus "The medication should be taken every three days."