* Mann-Whitney U test
abased on n=371 as not known for n=88 and on n=1243 as not known for n=260
bbased on n=320 as not known for n=138 and on n=972 as not known for n=531
cbased on n=300 as not known for n=159 and on n=1034 as not known for n=469
dbased on n=404 as not known for n=55 and on n=1314 as not known for n=189
eseverity according to Ring&Messmer
n=number
NS=non-significant