Complex sentence: Another study contacted 470 vasectomy patients and received 182 responses, finding that 18.7% of respondents experienced long-term genital pain, and 2.2% of respondents experienced pain that adversely affected quality of life.
Split into simpler sentences: Another study contacted 470 vasectomy patients and received 182 responses. Of these, 18.7% of respondents experienced long-term genital pain, and 2.2% of respondents experienced pain that adversely affected quality of life.