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Table 1

Summary statistics from selected questionnaire survey data

Question (number of responses)Mean (standard deviation) or %
Residence and household factors 
 Residence time at Rio das Pedras, in years (n= 101) 5.3 (6.2) 
 Monthly income, R$ (n= 67) 1,666 (748)a 
 Single-family households (n= 103) 94% 
 Home ownership (n= 103) 44% 
 Living in apartments (n= 103) 63% 
Water access 
 Daily supplied water (n= 103) 78% 
 Stores water for future consumption (n= 102) 91% 
Water storage practicesb 
 Used water storage approaches (n= 93): 
  Water tanks with a fitted lid 92% 
  Cleaning frequency of water storage containers, at least once every 6 months (n= 94) 62% 
Water treatment and perceptionb 
 At-home treatment for drinking water (n = 103): 
  Filtering 36% 
  Purchasing bottled water 51% 
 Water quality perception, Good or Very Goodc (n= 101) 61% 
Question (number of responses)Mean (standard deviation) or %
Residence and household factors 
 Residence time at Rio das Pedras, in years (n= 101) 5.3 (6.2) 
 Monthly income, R$ (n= 67) 1,666 (748)a 
 Single-family households (n= 103) 94% 
 Home ownership (n= 103) 44% 
 Living in apartments (n= 103) 63% 
Water access 
 Daily supplied water (n= 103) 78% 
 Stores water for future consumption (n= 102) 91% 
Water storage practicesb 
 Used water storage approaches (n= 93): 
  Water tanks with a fitted lid 92% 
  Cleaning frequency of water storage containers, at least once every 6 months (n= 94) 62% 
Water treatment and perceptionb 
 At-home treatment for drinking water (n = 103): 
  Filtering 36% 
  Purchasing bottled water 51% 
 Water quality perception, Good or Very Goodc (n= 101) 61% 

aThe overall monthly income average for sampled households in US dollars is approximately $480 with a standard deviation at $216. Conversions are based on the average annual exchange rate set for 2015 (1 US dollar = 3.468 Brazilian dollars).

bSpecifically for water storage practices and water treatment-related survey questions, we assumed that missing data could be denoted as a non-affirmation for the selection of a specific storage practice or water treatment method.

cContextual differences in cross cultural communication and self-reporting may have influenced this majority response.

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