estimation of the active social network of street children in shiraz (a city of iran)

Street children are a hard-to-reach population. since the direct method is not feasible and has some limitations, we utilized the network scale-up (nsu) as an indirect method. this study was conducted in shiraz municipalities. our target population was iranian boys between 10 to 18 years of age during the years 2014 to 2016. three trained psychologists conducted face to face interviews with 86 street children (boys) on the streets, through the convenience sampling technique. the social network size of street boys in shiraz was estimated at 17 persons (ranging from zero to 92 people, mean = 17 ± 17, median = 13). overall, the network size of the hidden population might be smaller than the general population, due to the stigmatized nature of their behavior and place of work.