Table 1 Seasonal variation of platelet count (PLT), plateletcrit (PTC), and mean platelet volume (MPV) in a cohort of blood donors in Italy
From: Seasonal variation of platelets in a cohort of Italian blood donors: a preliminary report
Number | PLT (× 10^9/L)* | PTC (%)** | MPV (fL)*** | |
|---|---|---|---|---|
(total = 172,836) | average ± SD | average ± SD | average ± SD | |
Winter | 40,465 | 235.8 ± 50.8 | 0.263 ± 0.059 | 11.43 ± 1.00 |
Spring | 43,056 | 229.7 ± 49.0 | 0.258 ± 0.057 | 11.47 ± 0.98 |
Summer | 44,208 | 227.1 ± 48.5 | 0.251 ± 0.058 | 11.45 ± 1.00 |
Autumn | 45,107 | 235.0 ± 50.4 | 0.262 ± 0.061 | 11.45 ± 0.99 |