Translation guide
A risk factor is something that increases the chance of a negative outcome, such as disease, accident, or failure. In Japanese, the most direct equivalent is 危険因子, but depending on context, other terms like リスク要因 or リスクファクター are used. This guide covers how to express the concept naturally in medical, business, and everyday situations.
A factor that increases the likelihood of developing a disease or health condition.
Standard medical term for risk factor. Used in clinical and public health contexts.
喫煙は肺がんの危険因子です。
Smoking is a risk factor for lung cancer.
Also common in medical literature, slightly more modern or research-oriented.
高血圧は脳卒中のリスク因子の一つです。
High blood pressure is one of the risk factors for stroke.
Any element that increases risk in non-medical contexts, such as business, safety, or personal decisions.
Broadly used for risk factors in business, finance, and general situations.
市場の変動は投資のリスク要因です。
Market fluctuations are a risk factor for investments.
Loanword from English, used in business and technical contexts. Sounds slightly more casual or jargon-like.
このプロジェクトのリスクファクターを洗い出しましょう。
Let's identify the risk factors for this project.
Literally 'dangerous element', used in everyday speech but less precise. Suitable for informal warnings.
夜道の一人歩きは危険な要素が多い。
Walking alone at night has many risk factors.
危険因子 is primarily medical, while リスク要因 is used in business, finance, and general risk analysis. Using 危険因子 outside of health contexts may sound overly dramatic or clinical.
Directly translating 'risk factor' as 危険要因 is not standard and may confuse listeners. Stick to the established terms above.