I do not know the labels on your items, but I'm guessing that you simply need to round your values. Try putting more decimals on your items and you will probably see that
Hi Ekene, there seems to be something wrong with your raw data. Your first table represents the frequency of death, infection, others and dnk categories plus five non labeled ones (1, 1, 2, 2, 2). As you declared this is a integer variable (no decimals) the frequency table does not display decimals, but they are there. Your first 1 is probably 1.x, that is, has decimals and these are different in your second 1 (1.y). The same occurs with TBA variable. As you have manipulated your data to deal with missing values you probably did something wrong and/or are reading data in a improper format.