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Table 2 Trends and differences in access to safe drinking water in Peruvian households, ENAHO 2008–2018

From: Inequalities in access to safe drinking water in Peruvian households according to city size: an analysis from 2008 to 2018

Year

General population (excluding rural areas)

City size

Small

Medium

Large

% (95% CI)

% (95% CI)

% (95% CI)

% (95% CI)

2008

46.7 (45.90–47.47)

29.2 (28.32–30.17)

49.1 (47.70–50.42)

65.6 (64.08–67.07)

2009

43.0 (42.19–43.78)

22.5 (21.67–23.34)

42.9 (41.57–44.26)

66.0 (64.46–67.45)

2010

45.2 (44.42–46.01)

24.1 (23.29–24.98)

44.3 (42.91–45.59)

68.9 (67.46–70.34)

2011

48.4 (47.65–49.11)

27.8 (27.02–28.64)

44.9 (43.61–46.10)

74.3 (73.04–75.59)

2012

47.8 (47.05–48.53)

28.0 (27.22–28.89)

45.1 (43.86–46.37)

72.3 (70.98–73.61)

2013

50.8 (50.12–51.40)

28.1 (27.38–28.84)

49.2 (47.98–50.32)

78.4 (77.35–79.48)

2014

49.3 (48.68–49.98)

28.0 (27.32–28.81)

48.0 (46.84–49.21)

75.1 (73.97–76.22)

2015

46.8 (46.13–47.48)

23.0 (22.30–23.73)

45.6 (44.35–46.75)

73.7 (72.49–74.89)

2016

48.3 (47.64–48.93)

26.2 (25.51–26.89)

49.4 (48.18–50.52)

73.8 (72.62–75.02)

2017

49.1 (48.50–49.79)

27.4 (26.74–28.15)

48.9 (47.72–50.09)

74.4 (73.23–75.56)

2018

51.9 (51.23–52.48)

29.1 (28.36–29.74)

52.4 (51.25–53.55)

78.4 (77.31–79.49)

P-value, test for trends*

< 0.001

0.009

< 0.001

< 0.001

Difference 2018 vs. 2008

Percentage points (95% CI)

5.2 (4.2; 6.2)

−0.2 (− 0.9; 1.3)

3.3 (1.6; 5.1)

12.8 (11.0; 14.7)

  1. % include the factor expansion and the complex survey design for each year of the ENAHO surveys
  2. The symbol (*) indicated the method to obtain the p-value