(colour online) Kaplan–Meier survival curve by mid-upper arm circumference (MUAC) and ethnicity categories (, Madhesi with MUAC<11·5 cm; , Pahadi with MUAC<11·5 cm; , Madhesi with MUAC≥11·5 cm; , Pahadi with MUAC<11·5 cm) in Nepalese children aged ≥6 months, Nepal Nutrition Intervention Project, Sarlahi-4 (21 October 2001–2 February 2006)