I have a list of SNPs that I have already obtained their proxy SNPs with MAF and LD from 1000 genomes pilot 1.    I want to know when everybody mentions about MAF matching, do they need to exactly the same?  

For example, the SNP of interest has MAF 0.35, if the proxy SNP has MAF 0.37, can it be used as a good proxy? Given LD of the two >0.8

Thanks