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Table 2 Socioeconomic, behavioural and environmental characteristics of the population sampled in Porto de Galinhas Ipojuca, Pernambuco 2010

From: Risk analysis for occurrences of schistosomiasis in the coastal area of Porto de Galinhas, Pernambuco, Brazil

Independent variables Cases Non-cases
  No % 95% CI No % 95% CI
With piped water 286 98.6 96.5 – 99.6 1.381 96.6 95.5 – 97.5
Without piped water 4 1.4 0.4 – 3.5 48 3.4 2.5 – 4.5
No accumulation of water in backyard in winter 89 30.7 25.4 – 36.3 591 41.4 38.8 – 44.0
With accumulated water in backyard in winter 201 69.3 63.7 – 74.6 838 58.6 56.0 – 61.2
No accumulation of water in backyard in summer 206 71.0 65.4 – 76.2 1.046 73.2 70.8 – 75.5
With accumulated water in backyard in summer 84 29.0 23.8 – 34.6 383 26.8 24.5 – 29.2
Sewage disposal: general system 6 2.1 0.8 – 4.4 51 3.6 2.7 – 4.7
Sewage disposal: pit or open ditch 284 97.9 95.6 – 99.2 1.378 96.4 95.3 – 97.3
Head of family’s schooling: high school or university 36 12.7 9.1 – 17.2 321 22.9 20.7 – 25.2
Head of family’s schooling: illiterate or elementary school 247 87.3 82.8 – 90.9 1.083 77.1 74.8 – 79.3
Age group: 0–9 and > 60 years 54 12.6 9.7 – 16.3 682 29.4 27.6 – 31.3
Age group: 10–19 years 99 23.2 19.3 – 27.5 384 16.6 15.1 – 18.2
Age group: 20–39 years 196 45.9 41.1 – 50.8 765 33.0 31.1 – 35.0
Age group: 40–59 years 78 18.3 14.8 – 22.3 487 21.0 19.4 – 22.7
No. of family members in home: < 5 peoples 164 56.6 50.6 – 62.3 886 62.0 59.4 – 64.5
No. of family members in home: > 5 people 126 43.4 37.7 – 49.4 543 38.0 35.5 – 40.6
Not stepping in water when going out from home in winter 34 11.7 8.3 – 16.0 298 20.9 18.8 – 23.1
Stepping in water when going out from home in winter 256 88.3 84.0 – 91.7 1.131 79.1 76.9 – 81.2
Not stepping in water when going out from home in summer 223 76.9 71.6 – 81.6 1.132 79.2 77.0 – 81.3
Stepping in water when going out from home in summer 67 23.1 18.4 – 28.4 297 20.8 18.7 – 23.0
Living in asphalted street 61 21.0 16.5 – 26.2 480 33.6 31.2 – 36.1
Not living in asphalted street 229 79.0 73.8 – 83.5 949 66.4 63.9 – 68.8
Family income: > 1 minimum monthly salary 208 71.7 66.2 – 76.8 1.166 81.6 79.5 – 83.6
Family income: < 1 minimum monthly salary 82 28.3 23.2 – 33.8 263 18.4 16.4 – 20.5
Female sex 175 40.3 35.7 – 45.1 1.270 54.7 52.6 – 56.7
Male sex 259 59.7 54.9 – 64.3 1.053 45.3 43.3 – 47.4
Length of time living at locality: < 1 year 5 1.7 0.6 – 4.0 58 4.1 3.1 – 5.3
Length of time living at locality: > 1 year 285 98.3 96.0 – 99.4 1.371 95.9 94.7 – 96.9