Dear all,
I need to compare values between previous and current month for the same data 
element, I know that one solution is to create a surveillance rule, but seems 
not working as it is always successfully validate, can anyone explain me how 
this works? May be the problem is how am defining the  "sequential sample 
count", as explained bellow, I do not understand well what this means.


·        Enter a Sequential sample count. This is the number of time periods 
immediately preceding against which you wish to compare the data. For example, 
if the period type is Weekly and this count is 2, the current data will be 
compared with past data averaged over each of the 2 previous weeks.
Kind regards,
João



Kind regards
_____________________________________
João Gabriel Mazuze
National Database Manager
Projecto CHASS-SMT
Abt Associates Inc.
Av. Marginal, 4067
Cidade de Maputo, Moçambique
Fax: (+ 258)  21486767
Tel:  (+ 258)  21493525/6/8
Cell: (+258) 82 4236279
www.chasssmt.com<http://www.chasssmt.com/>

[Description: Description: Description: Description: Description: Description: 
Description: Description: Description: Logotipo CHASS-SMT]
Somos um projecto financiado  pelo PEPFAR-II, através da USAID, para reforçar o 
Sistema de Saúde das Provincias de  Sofala, Manica e Tete. Pretendemos melhorar 
a ligação e integração do HIV  com os Cuidados Primários de Saúde e outros a 
ele relacionados em coordenação com as Direcções Provinciais de Saúde e outros 
parceiros. Através do projecto CHASS-SMT, o Governo Americano apoia o Governo 
Moçambicano na melhoria da qualidade dos Serviços de Saúde no país.




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