HD | Collection method | Year of collection | Total | χ 2 | P-value | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2011 | 2012 | 2013 | 2014 | ||||||||||
n | CSP+ (%) | n | CSP+ (%) | n | CSP+ (%) | n | CSP+ (%) | n | CSP+ (%) | ||||
GRA | OUT | 32 | 0 | 11 | 0 | 479 | 0.83 | 250 | 2.40 | 772 | 1.30 | 7.77 | 0.02 |
EXIT | 16 | 0 | 9 | 0 | 287 | 1.05 | 121 | 4.96 | 433 | 2.08 | |||
IN | 66 | 3.03 | 24 | 8.33 | 370 | 1.35 | 169 | 7.69 | 629 | 3.50 | |||
Total | 114 | 1.75 | 47 | 4.25 | 1137 | 1.06 | 540 | 4.63 | 1834 | 2.23 | 22.42 | 0.00005 | |
PIT | OUT | 407 | 0.25 | 184 | 0 | 181 | 1.10 | 484 | 1.45 | 1256 | 0.80 | 17.98 | 0.0001 |
EXIT | 14 | 0 | 20 | 0 | 293 | 1.02 | 227 | 2.64 | 554 | 1.62 | |||
IN | 179 | 1.12 | 351 | 1.12 | 295 | 5.76 | 293 | 4.09 | 1118 | 3.22 | |||
Total | 600 | 0.50 | 555 | 0.72 | 769 | 2.86 | 1004 | 2.49 | 2928 | 1.84 | 16.56 | 0.0008 | |
MYO | OUT | 3 | 0 | 21 | 0 | 30 | 0 | 44 | 4.55 | 98 | 2.04 | 2.06 | 0.36 |
EXIT | 10 | 0 | 1 | 0 | 43 | 4.65 | 72 | 2.78 | 126 | 3.17 | |||
IN | 34 | 2.94 | 5 | 20.00 | 57 | 7.02 | 71 | 4.22 | 167 | 5.39 | |||
Total | 47 | 2.13 | 27 | 3.70 | 130 | 4.61 | 187 | 3.74 | 391 | 3.82 | 0.57 | 0.90 |