Small scale studies
There are several small scale studies that review child and maternal nutritional status and related characteristics focussing on the north of Nigeria (e.g. Glew et al, 2004, Ifeanyi et al, 2009, Oninla, 2007, Vanderjagt 2009, Uthman 2009). Sample sizes are small and directed towards specific research questions and some are based on extended research by a number of investigators working from a hospital base.