Since the column contains a "1" for every deviating record and "0" for non-deviating records, you need to add the values of the column.
对于每个偏差记录，这个列的值为“1”，对于非偏差列，这个列的值为“0”，因此，需要添加这个列的值。
2
In this area, mortality from endemic diseases, especially malaria, is common, access to health care is poor, and medical records of deaths are scanty or non-existent.
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