This introduction also is well developed and well described although they is one part which is no clear I consider it as good introduction.
Criteria 1: The description of the topic well described
Example: Attempts to explain sex differentials in nutritional status in poor countries include differences in biological susceptibility to disease, and/or culturally mediated differences in access to food and care (Sherr et al. 2009). Substantial loss in disability-adjusted life years is associated with nutritional stunting, wasting and an associated increase in infant and young child mortality (Black et al. 2010). Ten million children under five die each year due to preventable interventions that focus on coordinated health system delivery, coordinated nutrition actions and reduction of inequalities in accessing and using health services (Bryce & Victora 2003).
Criteria 2: Summary of existing knowledge well described.
Example: It has review of the literature, very selective and from general to specific and comparison between Rwanda and Asia etc. In Asia, malnutrition is often more common in young girls than boys (Dey & Chaudhuri 2008) but not always (Schoenbaum et al. 1995). In sub-Saharan Africa, better nutritional status among young girls is more commonly seen (Ells 2000; Wamani et al. 2007; Lemma & Matji 2013). Research on sex differentials in nutritional status among HIV-exposed infants using longitudinal study designs has been limited. Yet, HIV infection is common in many parts of Africa. Intrahousehold sex discrimination has been documented in several low-resource settings (Wamani et al. 2007; Ndiku et al. 2011) in recent years and continues to challenge policy makers in ensuring equitable access to health and care in developing countries. The importance of feeding patterns in Rwanda is © 2014 John Wiley & Sons Ltd 17 Tropical Medicine and International Health doi:10.1111/tmi.12406 volume 20 no 1 pp 17–23 january 2015 critical, as the malnutrition rate has remained high (From Rwandan DHS 1992–2010, there was no change in chronic malnutrition), and yet Rwanda has the highest median duration of breastfeeding in the world (25 months) (DHS 2005–2010).
Criteria 3: Purpose of your study.
Example: Exploring nutrition status among HIV-exposed children is lacking; hence, a need exists to examine sex inequalities in feeding practices and nutritional status in a cohort of HIV-exposed children over time in Rwanda
Criteria 4: Description of your study described in the abstract but in the introduction is not stated.
Criteria 5: Contextual information well described.
Example: Such interventions should be implemented based upon gender analysis of political, social, cultural and local (Gillespie et al. 2013) determinants of nutrition.
Criteria 6: Potential impact well described.
Example: Intrahousehold sex discrimination has been documented in several low-resource settings (Wamani et al. 2007; Ndiku et al. 2011) in recent years and continues to challenge policy makers in ensuring equitable access to health and care in developing countries.