Results Data from 51 studies ( 15 more than previous review s ) and 22 cash transfer and voucher programmes  suggest that approaches tied to service use ( either via payment conditionalities or vouchers for selected services ) can increase use of antenatal care , use of a skilled attendant at birth and in the case of vouchers , postnatal care too .
The strongest evidence of positive effect was for conditional cash transfers and uptake of antenatal care , and for vouchers for maternity care services and birth with a skilled birth attendant .
However , effects appear to be shaped by a complex set of social and healthcare system barriers and facilitators .
There are few studies to indicate that programmes have led to improvements in quality of maternity care or maternal and newborn health outcomes .
Background Cash transfers and vouchers are forms of ‘ dem and -side financing ’ that have been widely used to promote maternal and newborn health in low- and middle-income countries during the last 15 years .
The impact of Mexico's conditional cash transfer programme, Oportunidades, on birthweight.
OBJECTIVES To evaluate the impact of Oportunidades , a large-scale , conditional cash transfer programme in Mexico , on  birthweight .  The programme provides cash transfers to low-income , rural households in Mexico , conditional on accepting nutritional supplements health education , and health care . METHODS The primary analyses used retrospective reports from 840 women in poor rural communities participating in an effectiveness study and r and omly assigned to incorporation into the programme in 1998 or 1999 across seven Mexican states . Pregnant women in participating households received nutrition supplements and health care , and accepted cash transfers . Using multivariate and instrumental variable analyses , we estimated the impact of the programme on birthweight in grams and low birthweight ( < 2500 g ) , receipt of any pre-natal care , and number of pre-natal visits . RESULTS Oportunidades beneficiary status was associated with 127.3 g higher birthweight among participating women and a 4.6 percentage point reduction in low birthweight . CONCLUSION The Oportunidades conditional cash transfer programme improved birthweight outcomes . This finding is relevant to countries implementing conditional cash transfer programmes
Results Data from 51 studies ( 15 more than previous review s ) and 22 cash transfer and voucher programmes  suggest that approaches tied to service use ( either via payment conditionalities or vouchers for selected services ) can increase use of antenatal care , use of a skilled attendant at birth and in the case of vouchers , postnatal care too .
The strongest evidence of positive effect was for conditional cash transfers and uptake of antenatal care , and for vouchers for maternity care services and birth with a skilled birth attendant .
However , effects appear to be shaped by a complex set of social and healthcare system barriers and facilitators .
There are few studies to indicate that programmes have led to improvements in quality of maternity care or maternal and newborn health outcomes .
Background Cash transfers and vouchers are forms of ‘ dem and -side financing ’ that have been widely used to promote maternal and newborn health in low- and middle-income countries during the last 15 years .