Fig. 3From: Characterization of immunization secondary analyses using demographic and health surveys (DHS) and multiple indicator cluster surveys (MICS), 2006–2018Distribution of immunization outcomes: For articles that analysed more than 1 specific immunization, all of them have been listed. Complete immunization was defined as receiving all recommended primary vaccine doses by a defined age. The third part in the figure presented the definition of complete immunization used in the different studies. Incomplete immunization was defined as not completing a set of recommended vaccine doses by a defined age. Specific immunization was defined as immunization of one type of vaccineBack to article page