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Table 1 Number of estimates per hospital and study period (n = 68)

From: The impact of nurse staffing levels and nurse’s education on patient mortality in medical and surgical wards: an observational multicentre study

 T0T1T2T3Total estimatesTotal patient records examined
Hospital 142  63627
Hospital 242  64893
Hospital 3422 83628
Hospital 4442 104197
Hospital 5444 125665
Hospital 64422126030
Hospital 74442146227