In Flonduras, parents increased the use of health services for young children by 15-21 percentage points, although no effects on children's illness rates were found, as in Brazil (Adato and Floddinott, 2007). Although these programmes are unconditional, their impacts are similar in magnitude to those of the influential PROGRESA/Oportunidades/Prospera programme in Mexico, which conditioned transfers on school attendance. In the sub-Saharan African context, key factors that raise the impact on children are the transfer amount, with a threshold of 20 percent of pre-transfer income being especially critical, and the degree of "messaging" about the purpose of the transfer. For example, several programmes, such as Kenya's CT-OVC and Lesotho's CGP, include strong messaging that the transfers are intended to support children's welfare, which has been found to be effective.