Note that the babies involved in the incidents were premature, and mortality for premature babies is going to be lower than that for full term babies. Further,

Note that the babies involved in the incidents were premature, and mortality for premature babies is going to be lower than that for full term babies. Further, as I understand it, those were babies that were being cared for in the Neonatal Intensive Care Unit and may have been vulnerable and less likely to survive to begin with. For example, I remember the press noting that a baby who died was no bigger than a hand. The press reported this to tug at readers' heartstrings, but it also has the effect of reminding that a baby born so early is in a precarious situation and may well not make it. In any case, the spreadsheet above doesn't give any of that information, either, so there is not enough information to know whether the deaths were suspicious in the first place. Looking at the spreadsheet, all we can say is that the only reason those incidents are associated with Lucy Letby is because Lucy Letby was on shift. Which is a tautology and not useful to make any decisions.