Table 3.
Progression in events per 100 person years in women from Soweto who had at least 2 interpretable cervical smears August 2003 – May 2009.
| Subsequent Smear1 | ||||
|---|---|---|---|---|
| Incident LSIL per 100 PY [95% CI] | Incident HSIL or ASCH per 100 PY [95% CI] | Any Progression (LSIL, HSIL, ASCH) per 100 PY [95% CI] | ||
| Baseline Smear | Normal (n=832) | 9.6 [8.3 – 11.1] | 3.3 [2.6 – 4.2]2 | 12.3 [10.9 – 13.9] |
| LSIL (n=242) | NA | 9.8 [7.5 – 12.7]3 | NA | |
1
Intervals between smears at least 5. 5 months apart;
2
61 cases were diagnosed as HSIL and 11 as ASCH;
3
52 cases were diagnosed as HSIL and 2 as ASCH
LSIL – low grade squamous intraepithelial lesion; HSIL – high grade squamous intraepithelial lesion; ASCH – atypical squamous cells cannot exclude HSIL