'bidirectional association' is a correct and common phrase in written English.
It is used to describe a mutual connection between two or more things, either directly or indirectly. For example, you might say that there is a bidirectional association between the economy and job opportunities.
Some longitudinal studies found clues for a bidirectional association: In adolescents anxiety and depression were associated with recurrent migraine (not tension-type headache) after four years [30], a higher migraine frequency was associated with higher depression and anxiety scores [31], depression and anxiety were significant risk factors for the chronification of migraine [12, 32, 33].
5 Our results are also consistent with those from another cohort that used two sets of measurements to explore the bidirectional association between depression and type 2 diabetes, a condition associated with raised body mass index.
Prior studies have shown a bidirectional association between depression and type 2 diabetes mellitus (T2DM); however, the prospective associations of anger and anxiety with T2DM have not been established.
A strong bidirectional association between migraine and psychiatric disorders has been documented [8].
Longitudinal studies have shown a specific bidirectional association between migraine and depression, suggesting a common etiology.
A correlation between migraine and panic disorder has been frequently reported [14 19] with a bidirectional association [20].
We examined bidirectional associations between serum 25-hydroxyvitamin D (25(OH D) and cholesterol concentrations.
To examine bidirectional associations between a child's fussy eating behavior and functional constipation.
This study aims to explore the bidirectional associations of conventional cigarette, e-cigarette and waterpipe experimentation in a large adolescent sample.
IRA presupposes that the agent has previously learned which action produces which effects, and that this learning process has created bidirectional associations between the sensory effect codes and the motor codes producing the sensory effects.
Although there is a vast amount of research on reading motivation, evidence for bidirectional associations between reading self-concept and reading achievement is still missing, whereas there is compelling empirical evidence that suggests reciprocal effects between academic self-concept and achievement in other domains.
