A new report says that [women / woman] who do not have children may die earlier than those who [do / don’t] . Researchers from Aarhus University in Denmark looked at over 21,000 couples between 1994 and 2005. They all tried to have children, without [successful / success] . The women all [want / went] to special clinics for IVF treatment – a [technique / technician] where doctors fertilize the woman’s egg [in / by] a laboratory. The researchers said that women who could not have children were four times [likely / likelier] than mothers to die early. Some doctors have said the report might [caused / cause] childless women to worry about dying early. The [truth / true] is there is a very small risk of an early death. Just 316 women died during the 11-year study. Very [few / little] of those died earlier than average. One critic of the report said the study was very [mistake / misleading] . Dr Ingrid Collins, a psychologist, [told / said] the BBC: “This is a very specific situation of people who are trying to have children. The study's [found / findings] cannot be used to talk about the [whole / all] general population.” She added: "People having IVF tend to be desperate [for / by] a child. If they are unsuccessful, they may be [depression / depressed] . It may be this depression rather than the childlessness that causes an earlier death.” Another psychologist, Dr Helen Nightingale, agreed, [saying / said] : "Being childless without a [debt / doubt] reduces your fight for life….The support of a family, the focus [on / in] your children and grandchildren, and the desire to watch how they turn out drives your [would / will] to survive.”