underdiagnosis of active TB disease during the antenatal and postnatal periods. HIV and TB co-infection during pregnancy have a multiplier effect on maternal morbidity and mortality, and result in poorer pregnancy outcomes. 1,11 In Pune, India, TB increased the probability of death by 2.2-fold among HIV-infected women who developed TB and by 3.4-fold for their infants compared to women who did not develop TB. 11 In Johannesburg, South Africa, 70% of obstetric deaths in HIV-infected women were mainly attributed to TB. 12 These fi gures suggest that routine screening of pregnant women for TB in endemic settings would be helpful, particularly those who are HIV-infected.The World Health Organization (WHO) recommends ruling out active TB and identifying those in need of further testing among HIV-infected adults using specifi c symptoms (current cough of any duration, fever, weight loss or night sweats). 13 Although these recommendations were not specifi c for pregnancy, Gupta et al. used this recommendation and found a 1.4% (11/799) prevalence of active TB among HIVi nfected pregnant women who were part of a clinical trial in India. 14 Another study of cough of >2 weeks, performed in Kenya by the same clinical team and by the same fi rst author in a routine setting similar to the target population for this study, failed to identify those with TB disease (n = 187). 15 The current study differs from the earlier one in its larger sample size and because it compares HIV-infected and non-infected pregnant women.Data on the utilization of symptom screening among pregnant women in routine settings are scarce. This has been attributed to signifi cant fi nancial and logistical challenges in the implementation of screening in this group of patients. 1 The objectives of the present study were 1) to explore the utility of TB symptom screening using symptoms of ⩾2 weeks' duration in a routine setting, and 2) to compare differences in diagnosis of TB among HIV-infected and non-infected pregnant women in western Kenya.
METHODS
Study designThis was a descriptive cohort study among HIV-infected and non-infected pregnant women. R eduction of tuberculosis (TB) transmission, morbidity and mortality relies largely on intensifi ed case fi nding, with consequent early initiation of adequate treatment. 1,2 This is particularly important among pregnant women in resource-limited settings where TB is a cause of non-obstetrical (indirect) maternal deaths. 3,4 This burden is higher in settings with a high prevalence of human immunodefi ciency virus (HIV) infection. 5,6 Kenya has an adult HIV prevalence of 6.2%, 7 with an unacceptably high maternal mortality ratio of 488 per 100 000 live births; 25% of these deaths are attributed to indirect causes such as TB, anaemia, HIV and malaria. 8 TB case notifi cation data are not stratifi ed for pregnancy, but women of reproductive age bear a higher burden of TB in sub-Saharan Africa than their male counterparts. 1,9 Data from Western Cape, South Africa, indicate that there is a 24.2-fold higher incidenc...