Skip to main content
. 2011 Apr 15;19(6):279–284. doi: 10.1007/s12471-011-0105-5

Table 2.

Magnitude of platelet reactivity

Magnitude of platelet reactivity in the elderly
<75 year (n = 815) ≥75 year (n = 136) p value After adjustment
Difference p value
LTA 20 ADP 57.2 ± 14.5 59.7 ± 13.8 0.047 2.10 0.11
LTA 5 ADP 39.3 ± 14.5 43.1 ± 14.4 0.0046 3.3 0.01
PRU 202.9 ± 74.9 233.5 ± 75.2 <0.0001 25.9 0.0001
PFA COL/ADP NA NA 0.008 NA 0.008
Magnitude of platelet reactivity in patients with a history of a cerebrovascular event
No TIA/stroke (n = 937) Previous TIA/stroke (n = 14) p value After adjustment
Difference p value
LTA 20 ADP 57.4 ± 14.4 67.0 ± 11.3 0.007 8.46 0.03
LTA 5 ADP 39.7 ± 14. 6 48.8 ± 10. 6 0.007 8.46 0.03
PRU 206.8 ± 75.6 245.5 ± 71. 5 0.07 37.4 0.06
PFA COL/ADP NA NA 0.09 NA 0.11
Magnitude of platelet reactivity in patients with a low body weight
≥60 kg (n = 921) <60 kg (n = 30) p value After adjustment
Difference p value
LTA 20 ADP 57.7 ± 14.3 51.6 ± 15.8 0.046 −7.2 0.007
LTA 5 ADP 39.9 ± 14.5 37.7 ± 15.4 0.45 −3.9 0.16
PRU 207.7 ± 75.1 198.7 ± 91.4 0.61 −28.1 0.04
PFA COL/ADP NA NA 0.87 NA 0.76

LTA light transmittance aggregometry, NA not applicable, PRU P2Y12 reaction units, PFA COL/ADP platelet function analyser using the collagen/ADP cartridge