Table 5.

Association between platelet transfusion on the day of grade 2A bleeding and grade ≥2A bleeding the following day, within morning platelet count subgroups, taking into account within-person correlation

Morning platelet countDays with grade 2A bleedingDays with platelet transfusion on the day of grade 2A bleedingNext day bleeding grade ≥2A after days with platelet transfusionDays without platelet transfusion on the day of grade 2A bleedingNext day bleeding grade ≥2A after days without platelet transfusionOR*95% CIP
No.%No.%No.%No.%
All platelet counts, ×109/L21811327617906085439445521.281.06-1.54.01
 1-1042040296228571848442.100.74-5.91.16
 11-20666410622245525638123481.200.86-1.69.28
 21-3037920153126631784793521.450.93-2.25.10
 31-402451134677681325472551.610.90-2.89.11
 41-5017192546368794645570.980.47-2.06.96
 51-6012559474373665338581.620.78-3.39.20
 61-706321331571426725602.100.80-5.47.13
 71-80381334538256613520.530.12-2.27.39
 81+671218650558226471.330.42-4.16.63
  • The interaction between the 9 morning platelet count categories and platelet transfusion was not significant (P = .34).

  • * Comparing platelet transfusion to no platelet transfusion.

  • Seven days had missing data for morning platelet count and are not included in the rows below.