The phrase "relationship persisted" is grammatically correct and can be used in written English.
It means that a relationship continued or existed despite challenges or difficulties. Example: Despite their frequent arguments, John and Sarah's relationship persisted for many years, proving their strong bond and commitment to each other.
The relationship persisted, but by 1986 the two were spending much of their time apart.
And whether they looked at the data at a given point or analyzed changes over time, that relationship persisted.
The relationship persisted even after controlling for age, sex, race, socioeconomic status, smoking and concerns about diet and weight.
This relationship persisted even after the researchers accounted for the possibility that more empathetic individuals might prefer reading novels.
This relationship persisted during IAH.
A strong positive correlation existed between these protein markers of the synthetic phenotype and phosphorylated ERK levels, and this relationship persisted across matrix geometries and compositions.
Moreover, the relationship persisted among intensity-specific physical activity, including vigorous physical activity (dose response differences across the three groups of 4.5 min of weekly vigorous activity, P = 0.08).
She became an important confidante; the relationship persisted for eight years, largely through correspondence.
This relationship persisted after controlling for disease severity (using APACHE II score) in a multivariate analysis.
The T2-advanced AMD relationship persisted after adding these data to the pooled AREDS A and AREDS B cohort (OR = 2.66 (95%CI 1.29 5.49, 2-sided P≤0.008).
Individuals who report physical disorders including arthritis, gout or rheumatism, and diabetes or high blood sugar were more likely to endorse DLEs compared to those who were otherwise healthy, and this relationship persisted when we adjusted for the presence of common mental conditions such as anxiety disorder or depression.
