Clinical category | Prevalence (%) (95% CIa) | Prevalence (%) (95% CIa) |
|---|
| | Baseline |
n
| Follow-up |
n
|
|---|
TF1–9
b
| 22.0 (18.9–25.5) | 136/618 | 7.4 (4.8–9.9)* | 29/394 |
TI1–9
| 2.9 (1.4–4.1) | 18/618 | 1.5 (0.3–2.7) | 6/394 |
Ct
all
c
| 18.6 (16.7–28.8) | 280/1502 | 3.3 (2.2–4.4)** | 34/1029 |
Ct
1–9
| 25.4 (22.0–28.8) | 157/618 | 6.6 (4.1–9.0)*** | 26/395 |
-
aCI, confidence interval
-
bTF1–9, TF (Trachoma-Follicular) in 1–9 year olds; TI1–9 = TI (Trachoma-Intense Inflammatory) in 1–9 year olds
-
c
Ct, C. trachomatis infection in the population overall and in 1–9 year olds 293 households were included at baseline and 254 at follow-up. Of the households lost to follow-up, 18 had C. trachomatis detected in children aged 1–9 years within the household at baseline. C. trachomatis infection status of the household at baseline was adjusted for in the follow-up analysis
- *P < 0.0001; Chi-square test, χ
2 = 37.5, df = 1, difference 14.6% (95% CI: 10.2–18.8%)
- **P < 0.0001; Chi-square test, χ
2 = 131.7, df = 1, difference 15.3% (95% CI: 13.0–17.6%)
- ***P < 0.0001; Chi-square test, χ
2 = 57.5, df = 1, difference 18.8% (95% CI: 14.3–23.1%))
