| Survey 1 (2009) | Survey 2 (2011) | Survey 3 (2012)a | Survey 4 (2013) | |
---|---|---|---|---|---|
Sample size and target | Targeted sample size | 1,107 | 1,107 | 2,530 | 372 |
Total population | 4,431 | 4,761 | 5,044 | 5,225 | |
Number tested (n) | 1,089 | 1,096 | 2,097 | 359 | |
ICT | ≥ 8 years % Positive (n/N) | 4.9% (39/800) | 3.5% (28/795) | 2.8% (50/1,812) |  |
[95% CI] | [3.53–6.67] | [2.40–5.12] | [2.08–3.65] | – | |
6–7 years % Positive (n/N) | 0% (0/289) | 2.7% (8/301) | 3.9% (11/285) | 4.5% (14/309) | |
[95% CI] | [0.00–1.64] | [1.24–5.37] | [2.04–7.00] | [2.60–7.66] | |
Mf | ≥ 8 years % Positive (n/N)b | 2.6% (1/39) | 10.7% (3/28) | 0% (0/50) |  |
[95% CI] | [0.06–13.48] | [2.81–29.37] | [0.00–8.89] | – | |
6–7 years % Positive (n/N)b | 0 | 0% (0/8) | 0% (0/11) | 0% (0/14) | |
[95% CI] |  | [0.00–40.23] | [0.00–32.15] | [0.00–26.76] | |
PCR | ≥ 8 years % Positive (n/N) | 5.13% (2/39) | np | np | np |
[95% CI] | [0.89–18.63] |  |  |  | |
6–7 years % Positive (n/N) | 0 | np | np | np | |
[95% CI] | Â | Â | Â | Â | |
Wb123 | ≥ 8 years % Positive (n/N) | np | np | 4.7% (2/43) | nd |
[95% CI] |  |  | [0.81–17.06] |  | |
6–7 years % Positive (n/N) | np | np | 1.8% (5/285) | nd | |
[95% CI] |  |  | [0.65–4.27] |  | |
Og4C3 | ≥ 8 years ICT % Positive (n/N) | np | np | 4% (2/50) | np |
[95% CI] |  |  | [0.70–14.86] |  | |
6–7 years % Positive (n/N) | np | np | 1.8% (5/285) | np | |
[95% CI] |  |  | [0.65–4.27] |  |