Fig. 5

Diagnostic investigations made by private and hospital specialists in the year preceding an ovarian cancer diagnosis (omitting the IRR in the last month before diagnosis)

Number of different diagnostic investigations performed and stratified on ovarian cancer (yes/no). Borderline ovarian tumours included. Maximum one investigation of each type per women per day included. Number of investigations are presented as crude rates of mean number of investigations per month. Incidence rate ratios were adjusted for age, comorbidity, educational level, marital status, disposable income and country of origin. Black lines represent 95% confidence intervals. CT scans were only performed at hospitals.

Abbreviations: IRR = Incidence rate ratio.