After two weeks the completed questionnaires were collected from the respondents, checked for completeness, coded, entered in the computer and analysed using the Statistical Package for Social Sciences (version 18.0).
Extracted data were checked for completeness, coded, and entered into SPSS version 16.0.
Collected questionnaires were checked visually for completeness, coded and entered into SPSS version 16.0 software package.
Data from all collaborating centres were checked for completeness, coded and merged to form a core database.
The returned self-administered questionnaires were cross-checked for completeness, coded and entered into a computer using the Statistical Package for Social Sciences (SPSS) version 18.0.
The collected copies of the questionnaire were checked manually for its completeness, coded and entered into the EPI-Info version 7 statistical packages, and exported to SPSS version 20.0 for further analysis.
Data was checked for completeness, coded, and first entered in to EPI-info version 7, then it was rechecked and transferred to Statistical Package for Social Science (SPSS) version 20 for analysis.
When the in-patient register was evaluated for validity and completeness, codes for surgical procedures were correct for 98% of the records (Nilsson et al, 1994).
However, our results, based on administrative databases, might be affected by lack of accuracy and completeness in coding.
Improved diagnostics, accuracy, and completeness of coding for deaths due to enteric infections may be causes for the demonstrated increasing trend.
