Cytology results in the City of Johannesburg in 2014–2016
| Variable n (%) | Johannesburg health district* (n=114 983) | Hillbrow Community Health Centre (n=2227) | P value |
| Pap smear results | |||
| NILM | 74 969 (65.2) | 852 (38.3) | |
| LSIL | 23 212 (20.2) | 790 (35.5) | |
| ASCUS | 7391 (6.4) | 184 (8.3) | |
| HSIL | 7808 (6.8) | 364 (16.3) | |
| ASC-H | 1221 (1.1) | 28 (1.3) | |
| Carcinoma | 382 (0.3) | 9 (0.4) | <0.001 |
| Number requiring colposcopy | |||
| No (NILM, LSIL or ASCUS) | 105 572 (91.8) | 9411 (82.0) | |
| Yes (HSIL, ASC-H or carcinoma) | 1826 (8.2) | 401 (18.0) | <0.001 |
Data from the National Health Laboratory Service. Excludes invalid or missing specimens, and other Pap smear results (n=2446).
*District total excludes HCHC.
ASC-H, atypical squamous cell and HSIL cannot be excluded; ASCUS, Atypical squamous cell of uncertain significance; HSIL, high-grade squamous intraepithelial lesion; LSIL, Low-grade squamous intraepithelial lesion; NILM, Negative for intraepithelial lesion and malignancy; Pap, Papanikolaou.