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Background: Objectives: To determine whether the incidence of tuberculosis with pregnancy is more common than would be expected from the crude birth rate; to see whether there is significant delay in the diagnosis of tuberculosis during pregnancy. Method: Design: A cross-sectional survey. Setting: 13 tuberculosis clinics within different European countries and the USA. Population/sample: All patients with tuberculosis seen at these clinics for a period < 1 year. Instrument: Questionnaire survey based on continuous data collection. Main outcome measures: number and proportion of women with tuberculosis who were pregnant; timing of diagnosis in relation to pregnancy, including those who were pregnant or delivered in the 3 months prior to the diagnosis of TB and those who developed TB within 3 months after delivery. Results: Pregnancy occurred in 224 (1.5 %) of 15,217 TB patients and followed the expected rate predicted from the crude birth rate for the clinic populations. TB was diagnosed more commonly in the 3 months after delivery (n = 103) than during pregnancy (n = 68; χ2 = 25.1, P < 0.001). Conclusions: TB is diagnosed more frequently after delivery, despite variations in local TB incidence and healthcare systems. [ABSTRACT FROM AUTHOR]