Fig. 1

a Model 1 (forecast model): The predicted 1 × 1 km posterior mean stunting maps classified using WHO categories for 2008 and 2010 for children aged 6–59 months. Less than 20 % represents low prevalence; 20 % – < 30 %, medium prevalence; 30 % – < 40 %; high class and > =40 % represents the very high prevalence. b Model 2 (full data model): The predicted 1 × 1 km posterior binned stunting mean maps for 2007 and 2010 for children aged 6–59 months. Less than 20 % represents low prevalence; 20 % – < 30 %, medium prevalence; 30 % – < 40 %; high class and > =40 % represents the very high prevalence according to the WHO prevalence classification. A = South Central zone, B = North East (Puntland) zone, C = North West (Somaliland) zone. The blue lines represent the two rivers in Somalia (Juba and Shabelle)