Table 2. Mean infant mortality rates for congenital syphilis in children <1 year of age reported to national surveillance, by year and region of Brazil, 2010–2015*.
| Category | No. cases, n = 906 | Mean rate (95% CI†) |
p value‡ | |
|---|---|---|---|---|
| Year | ||||
| 2010 | 90 | 2.74a,b (1.86–3.62) | ||
| 2011 | 111 | 3.44c (2.55–4.33) | ||
| 2012 | 147 | 4.22 (2.68–5.76) | 0.005 | |
| 2013 | 161 | 5.12 (3.37–6.87) | ||
| 2014 | 176 | 6.38a (4.36–8.40) | ||
| 2015 | 221 | 6.94b,c (4.94–8.94) |
||
| Region | ||||
|---|---|---|---|---|
| North | 119 | 6.27d (3.77–8.77) | ||
| Northeast | 265 | 5.28 (4.16–6.41) | ||
| Southeast | 384 | 5.50 (4.00–7.00) | 0.041 | |
| South | 99 | 4.25 (2.82–5.68) | ||
| Midwest | 39 | 2.73d (1.51–3.96) |
||
*Excluding stillbirths and fetal deaths; mean rates/100,000 live births. Values with superscript letters indicate significant differences between the pairs calculated by using the Tukey test. †Assuming Poisson distribution ‡1-way analysis of variance; p<0.05 indicates statistical significance.