Sequelae symptoms Any of the following symptoms 777/1149 (68{44affb6c5789133b77de981cb308c1480316fee51f5fd5f1575b130f48379a33}) 583/1188 (49{44affb6c5789133b77de981cb308c1480316fee51f5fd5f1575b130f48379a33})

p<4·17 × 10−3 for the comparison of 12-month with 6-month follow-up.