Changes in syphilis prevalence among clients of FSWs between the study rounds at different levels of the independent variables having a significant statistical interaction with the study round
| Factors having a significant interaction with the round | AOR | 95% CI | p Value | p Value of the interaction term |
|---|---|---|---|---|
| Baseline syphilis prevalence | 0.003 | |||
| Minimum value (2.13%) | 0.78 | 0.53 to 1.16 | 0.220 | |
| 25th Centile (3.23%) | 0.65 | 0.48 to 0.89 | 0.007 | |
| 50th Centile (4.04%) | 0.57 | 0.44 to 0.75 | <0.001 | |
| 75th Centile (5.97%) | 0.42 | 0.32 to 0.55 | <0.001 | |
| Maximum (11.22%) | 0.18 | 0.09 to 0.37 | <0.001 | |
| Difference in covered value | 0.023 | |||
| Minimum (−5.9%) | 0.92 | 0.59 to 1.43 | 0.711 | |
| 25th Centile (17.9%) | 0.61 | 0.47 to 0.80 | <0.001 | |
| 50th Centile (26.4%) | 0.53 | 0.41 to 0.67 | <0.001 | |
| 75th Centile (42.6%) | 0.40 | 0.30 to 0.53 | <0.001 | |
| Maximum* (106.3%) | 0.13 | 0.06 to 0.31 | <0.001 | |
| HIV infection status | <0.001 | |||
| Negative | 0.35 | 0.27 to 0.47 | <0.001 | |
| Positive | 1.24 | 0.81 to 1.89 | 0.322 | |
| Typology of FSWs | ||||
| Public place-based | 0.54 | 0.38 to 0.76 | <0.001 | 0.003 |
| Brothel-based | 0.65 | 0.45 to 0.93 | 0.018 | 0.006 |
| Home-based | 0.12 | 0.05 to 0.30 | <0.001 | |
| Other | 0.27 | 0.12 to 0.62 | 0.002 | 0.186 |
*Coverage can be>100% because the denominator of this indicator is based on the estimate of the size of the FSW population at any moment in the district, whereas the number of women actually covered in the district might be higher than the denominator in places with high turnover of FSWs (mean duration of FSWs in the district of <1 year).
AOR, adjusted OR; FSW, female sex worker.