|  | Cytology | HPV | Difference per round (%) |
---|---|---|---|---|
Positive screens | ||||
 Total* | ||||
  Number of positives needed to detect one | CIN2+ | 4.4 | 6.3 | 44 |
CIN3+ | 7.2 | 10.8 | 50 | |
Referrals | ||||
 Total* | ||||
  Number of referrals needed to detect one | CIN2+ | 1.9 | 2.7 | 47 |
CIN3+ | 3.0 | 4.6 | 53 | |
 HSIL | ||||
  Number of referrals needed to detect one | CIN2+ | 1.3 | 1.3 | −2 |
CIN3+ | 1.8 | 1.8 | −2 | |
 ASC-US/LSIL | ||||
  Number of referrals needed to detect one | CIN2+ | 3.0 | 4.7 | 57 |
CIN3+ | 7.5 | 12.0 | 60 |