〜を契機に

Pattern: 〜を契機に
Level: N3
Meaning: taking the opportunity of, as a trigger for
Attaches to: noun + を契機に
Nuance & register: Formal, written, denotes a turning point.
Example: 病気を契機に、生活習慣を完全に改めた。
Easily confused with: 〜をきっかけに