In a proportion of cases, no identifiable risk factor can be identified, prompting the idea that an oncogenic virus may be involved (Amarante and Watanabe, 2009).
Demographically, Mr. Diller is not typical of the five million stroke survivors in America; two-thirds are 65 or older, and many have identifiable risk factors, like high blood pressure, that he did not.
Forty of those who received LMWH had identifiable risk factors on review of case notes.
A number of predisposing and precipitating factors are considered important identifiable risk factors for gingival recession in relation to orthodontic treatment[11].
Birth-related trauma can occur without identifiable risk factors; however, it is more common in context of predisposing feto-maternal risk factors.
On the other hand, SEL has also been described in patients with morbid obesity, as well as in those with no identifiable risk factors [1 4].
To describe a case of chronic isolated fallopian tubal torsion in a woman without identifiable risk factors and discuss the difficulty of diagnosis.
It is likely that during this critical 6-h period of initial presentation there are readily identifiable risk factors in the sepsis population that predispose them to developing ARDS.
Of particular note, our postulated reasons for using chemical prophylaxis in the absence of identifiable risk factors as well as for not prescribing it for those with risk factors contribute to weakness of our data and analysis.
However, at least 30% of reported hepatitis B among adults cannot be associated with an identifiable risk factor.
Indeed, in our series 43% of the MDR-TB cases had no identifiable risk factors and were thus unexpected.
