The phrase "a poor chance of" is correct and usable in written English.
It can be used to express a low likelihood or probability of something happening.
Example: "There is a poor chance of rain tomorrow, so we can go ahead with the picnic."
Alternatives: "a slim chance of" or "a low likelihood of".
His lawyer told him the rejection meant he had a poor chance of qualifying for NFL disability.
Any Libyan with a black skin accused of fighting for the old regime may have a poor chance of survival.
The daughters of such families have a poor chance of getting a decent education.Special report Looking to Europe Which Turkey?
We also wanted to identify factors that predicted a poor chance of successful lumpectomy, to avoid multiple lumpectomy attempts in a patient who would ultimately require mastectomy.
Presumably such attempts to explain things away would have a poor chance of survival if everyone ran around with skin rashes scratching themselves and fashion shoots and business meetings were accompanied by incessant scratching.
Those with the most severe form have a poor chance of surviving.
But a smoker who had to stop therapy to recover from side effects had a poorer chance of survival than a nonsmoker.
Previous research has found single men have a poorer chance of surviving several types of cancer, including prostate and head and neck cancer.
The presence of lung disease and the use of a mismatched unrelated donor did correlate with a poorer chance of survival.
In a study on LBP in an occupational setting, patients with a previous duration of more than 30 days also had a poorer chance of long-term recovery [ 33], using zero days of pain as a measure of recovery.
In particular, there is no reason to expect that surgeons would be more likely to operate on patients with a poorer chance of responding to surgery if they had normal as compared with abnormal median nerve conduction.
