Table 2 Sample characteristics, schistosomiasis prevalence and raw analysis according to independent variables. Pernambuco, Brazil, 2014
Variables | n | % | % Schistosomiasis | Raw analysis | p-value | ||
|---|---|---|---|---|---|---|---|
PR | 95% CI | ||||||
Number of treatment cycles | 0.011 | ||||||
1 | 3963 | 44.4 | 2.7 | 1.00 | |||
2 | 4969 | 55.6 | 1.9 | 0.70 | 0.53 | 0.92 | |
Region | 0.001 | ||||||
Northern (Agreste Setentrional) | 2415 | 27.0 | 1.2 | 1.00 | |||
Metropolitan | 2400 | 26.9 | 2.5 | 2.12 | 1.37 | 3.28 | |
Southern (Agreste Meridional) | 1290 | 14.4 | 2.1 | 1.74 | 1.04 | 2.93 | |
Forest area (Zona da mata) | 2827 | 31.7 | 2.8 | 2.36 | 1.55 | 3.59 | |
Zone of residence | 0.105 | ||||||
Urban | 4878 | 55.0 | 2.4 | 1.00 | |||
Rural | 3992 | 45.0 | 1.9 | 0.79 | 0.60 | 1.05 | |
Open drainage ditch/sewer | 0.999 | ||||||
No | 5168 | 58.9 | 2.2 | 1.00 | |||
Yes | 3614 | 41.2 | 2.2 | 1.00 | 0.75 | 1.33 | |
Was there an open drainage ditch/sewer that was corrected after 2011? | 0.860 | ||||||
No | 8535 | 97.2 | 2.2 | 1.00 | |||
Yes | 247 | 2.8 | 2.0 | 0.92 | 0.38 | 2.23 | |
Does water usually flood houses? | 0.039 | ||||||
Yes | 981 | 11.2 | 2.8 | 1.00 | |||
No | 5380 | 61.3 | 2.4 | 0.86 | 0.57 | 1.30 | |
There has never been a flood | 2417 | 27.5 | 1.6 | 0.57 | 0.35 | 0.93 | |
Was there flooding, but the situation improved after 2011? | 0.114 | ||||||
No | 8505 | 96.9 | 2.3 | 1.00 | |||
Yes | 273 | 3.1 | 0.7 | 0.33 | 0.08 | 1.31 | |
Economic status | 0.001 | ||||||
B and C | 2739 | 33.5 | 2.3 | 1.00 | |||
D | 4801 | 58.8 | 2.0 | 0.86 | 0.63 | 1.19 | |
E | 626 | 7.7 | 4.3 | 1.91 | 1.22 | 2.97 | |
Sex | 0.020 | ||||||
Female | 4860 | 54.4 | 1.9 | 1.00 | |||
Male | 4072 | 45.6 | 2.6 | 1.39 | 1.05 | 1.83 | |
Age (full years) | 0.002 | ||||||
< 5 | 738 | 5.7 | 0.6 | 1.00 | |||
5–14 | 2746 | 21.2 | 1.6 | 2.42 | 0.74 | 7.91 | |
15–44 | 6335 | 48.9 | 2.8 | 4.35 | 1.39 | 13.6 | |
45 or over | 3145 | 24.2 | 2.0 | 3.11 | 0.97 | 9.96 | |
Skin color | 0.021 | ||||||
White | 2443 | 27.5 | 1.5 | 1.00 | |||
Black | 848 | 9.5 | 3.2 | 2.10 | 1.29 | 3.43 | |
Brown | 5546 | 62.3 | 2.4 | 1.57 | 1.09 | 2.26 | |
Yellow/indigenous | 63 | 0.7 | 1.6 | 1.05 | 0.15 | 7.52 | |
Lives with a partner | 0.421 | ||||||
No | 4832 | 54.1 | 2.1 | 1.00 | |||
Yes | 4100 | 45.9 | 2.3 | 1.12 | 0.85 | 1.48 | |
Has contact with water from rivers | < 0.001 | ||||||
No, never | 2263 | 25.6 | 1.1 | 1.00 | |||
Yes, in the past but not currently | 4046 | 45.7 | 2.6 | 2.30 | 1.49 | 3.56 | |
Yes, currently | 2537 | 28.7 | 2.7 | 2.46 | 1.56 | 3.88 | |
Has contact with water from open drainage ditches/sewers | 0.627 | ||||||
No, never | 4180 | 47.3 | 2.2 | 1.00 | |||
Yes, in the past but not currently | 1705 | 19.3 | 2.5 | 1.11 | 0.77 | 1.59 | |
Yes, currently | 2950 | 33.4 | 2.0 | 0.91 | 0.66 | 1.26 | |
Walks barefoot in the street | 0.999 | ||||||
Never | 5509 | 61.9 | 2.2 | 1.00 | |||
Sometimes | 1714 | 19.3 | 2.2 | 1.01 | 0.70 | 1.45 | |
Nearly always | 526 | 5.9 | 2.3 | 1.04 | 0.58 | 1.87 | |
Always | 1154 | 13.0 | 2.2 | 0.99 | 0.64 | 1.51 | |
Has had schistosomiasis at some time in life | 0.193 | ||||||
No | 7107 | 82.9 | 2.1 | 1.00 | |||
Yes | 1467 | 17.1 | 2.7 | 1.26 | 0.89 | 1.78 | |