Table 1. Age-specific HPV type distribution of invasive cervical cancer cases by screening status in last 10 years.
Age <30 years | Age 30–39 years | Age 40–49 years | Age 50–64 years | Age > = 65 years | ||||||
---|---|---|---|---|---|---|---|---|---|---|
N | %d | N | %d | N | %d | N | %d | N | %d | |
Cases that were screened in the last 10 years | ||||||||||
HPV 16 | 81 | 63.3 | 305 | 59.2 | 208 | 48.3 | 197 | 47.0 | 70 | 42.7 |
HPV 18 | 34 | 26.6 | 121 | 23.5 | 98 | 22.7 | 73 | 17.4 | 17 | 10.4 |
HPV 45 | 4 | 3.1 | 36 | 7.0 | 39 | 9.0 | 40 | 9.5 | 4 | 2.4 |
Intermediate oncogenic typesa | 8 | 6.3 | 30 | 5.8 | 29 | 6.7 | 29 | 7.0 | 24 | 14.6 |
Lower oncogenic typesb | 1 | 0.8 | 9 | 1.8 | 21 | 4.9 | 13 | 3.0 | 5 | 3.0 |
Oncogenic HPV negativec | 0 | 0.0 | 14 | 2.7 | 36 | 8.4 | 67 | 16.0 | 44 | 26.8 |
Total | 128 | 100 | 515 | 100 | 431 | 100 | 419 | 100 | 164 | 100 |
Cases that were unscreened in the last 10 years | ||||||||||
HPV 16 | 29 | 74.4 | 69 | 69.0 | 80 | 58.0 | 135 | 54.7 | 297 | 44.4 |
HPV 18 | 6 | 15.4 | 15 | 15.0 | 26 | 18.8 | 29 | 11.7 | 51 | 7.6 |
HPV 45 | 3 | 7.7 | 6 | 6.0 | 10 | 7.2 | 24 | 9.7 | 31 | 4.6 |
Intermediate oncogenic typesa | 1 | 2.6 | 6 | 6.0 | 9 | 6.5 | 26 | 10.4 | 105 | 15.6 |
Lower oncogenic typesb | 0 | 0.0 | 2 | 2.0 | 3 | 2.1 | 14 | 5.6 | 51 | 7.4 |
Oncogenic HPV Negativec | 0 | 0.0 | 2 | 2.0 | 10 | 7.2 | 19 | 7.7 | 134 | 20.0 |
Total | 39 | 100 | 100 | 100 | 138 | 100 | 247 | 100 | 669 | 100 |
aIntermediate oncogenic types include HPV 31, 33, 52, 58 (etiological fraction>2% according to IARC’s data [4]).
bLower oncogenic types include HPV 35, 39, 51, 56, 59, 66, 68 (etiological fraction <2% according to IARC’s data [4]).
cOncogenic HPV negative in formalin-fixed paraffin-embedded tumor blocks.
dColumn percentage: number of cases of a certain type divided by all cases (oncogenic HPV negative cases included in the denominator).
HPV, human papillomavirus; IARC, International Agency for Research on Cancer.