“…Overall the 13 studies represented data from seven different countries within Asia [ 24 , 26 , 34 , 35 , 36 ], the Middle East [ 25 , 37 , 38 , 39 , 40 ] and Africa [ 6 , 27 ]. Two studies were conducted in India [ 24 , 34 ], three in China [ 26 , 35 , 36 ], three in Turkey [ 37 , 38 , 41 ], two in Iran [ 25 , 40 ] and one in each of Pakistan [ 42 ], Kenya [ 6 ] and Nigeria [ 27 ]. Seven studies were conducted in the inpatient setting within large maternity hospitals [ 6 , 24 , 25 , 26 , 27 , 38 , 39 ] and four studies involved women who were recruited as outpatients, attending antenatal clinic bookings [ 34 , 37 , 40 , 41 ].…”