Association between IVF treatment and mental health hospital admissions in women who remained nulliparous after infertility treatment.

* Hazard ratios estimated from a Cox regression model that includes the variables listed plus age group and calendar year group (both included as categorical variables). † Women in the lower three quartiles of the Index of Economic Resources were categorised as being of low socio-economic status; women in the upper quartile of the Index of Economic Resources were categorised as being of high socio-economic status. Association between IVF treatment and mental health hospital admissions in women who remained nulliparous after infertility treatment.