Table 2– Rates of in-hospital death according to the day of admission and the day of stay for the cohort of patients hospitalised for chronic obstructive pulmonary disease
Person-daysDeathsRate per 1000 per day
Day of admission
 Monday587 07746948.00
 Tuesday605 27949788.22
 Wednesday620 52549267.94
 Thursday627 31349397.87
 Monday–Thursday2 440 19419 5378.01
 Friday687 66453877.83
 Saturday469 60938908.28
 Sunday425 06236008.47
Day of stay
 Monday578 07345637.89
 Tuesday585 18545947.85
 Wednesday585 12345487.77
 Thursday581 86046097.92
 Monday–Thursday2 330 24118 3147.86
 Friday581 73047488.16
 Saturday553 85547808.63
 Sunday556 70345728.21