즉, 결혼 기간이 3–7년 미만인 군이 1–3년 미만 군보다 난임 관련 삶의 질 정도가 낮았다.
In other words, the group who have been married less than 3 to 7 years had a lower quality of life related to infertility than the group who have been married less than 1 to 3 years.