Drinking Water Quality Surveillance Information System (SISAGUA): evaluation of data completeness on water supply coverage, Brazil, 2014-2020

Mata, Renan Neves da; Oliveira Júnior, Aristeu de; Ramalho, Walter Massa

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Brasil

Epidemiologia e Serviços de Saúde

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Brasil

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Sumário

Research note • Epidemiol. Serv. Saúde 31 (3) • 2022 • https://doi.org/10.1590/S2237-96222022000300003 copy

Drinking Water Quality Surveillance Information System (SISAGUA): evaluation of data completeness on water supply coverage, Brazil, 2014-2020

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective:

To evaluate the completeness of dataset of the Drinking Water Quality Surveillance Information System (SISAGUA) regarding information on the coverage of water supply for human consumption in Brazil.

Methods:

This was a descriptive study on data between 2014 and 2020. A relative frequency distribution of 35 variables was calculated. Completeness was categorized as excellent (≥ 95%), good (90% to 94%), regular (70% to 89%), poor (50% to 69%) and very poor (≤ 49%).

Results:

In the period, there were 861,250 records of forms of water supply. With regard to data completeness, SISAGUA obtained an excellent classification for 25 variables, good for two, regular for three, poor for one and very poor for four variables.

Conclusion:

The system showed excellent data completeness for most of the variables. This type of study contributes to the continuous improvement of SISAGUA and enables the identification of inconsistencies and weaknesses.

Keywords:
Drinking Water; Health Information Systems; Public Health Surveillance; Environmental Health; Descriptive Epidemiology

Variable	Percentage of completeness
Variable	2014	2015	2016	2017	2018	2019	2020
Geographical region^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Federative Unit	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Regional Health Care^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Municipality^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
IBGE Code^a,b	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Type of form of supply^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Form of water supply code^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Name of the form of water supply^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Reference year^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Date of registration^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Date of completion^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Surface water collection^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Underground water collection^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Inhabitant/household ratio^a	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Number of residential economies (permanent households)^a	99.9	100.0	99.9	99.9	100.0	100.0	100.0
Filtration^c	94.2	94.0	94.8	95.7	95.3	96.0	96.3
Disinfection^c	93.5	93.1	94.5	95.3	94.9	95.6	96.0
Cistern^d	84.7	87.7	88.3	90.1	89.4	89.5	89.4
Rainwater harvesting^d	84.7	87.7	88.3	90.1	89.4	89.5	89.4
Water tank^d	44.9	47.7	46.4	52.4	46.5	47.1	47.0
No reservoir^d	44.9	47.7	46.4	52.4	46.5	47.1	47.0
SAA/SAC provide water to the population^c,e,f	44.9	47.7	46.4	52.4	46.5	47.1	47.0
Water tank truck^d	39.9	40.0	41.8	37.7	42.9	42.4	42.4
Fountain^d	39.9	40.0	41.8	37.7	42.9	42.4	42.4
Spring^d	39.9	40.0	41.8	37.7	42.9	42.4	42.4
Pipeline^d	39.9	40.0	41.8	37.7	42.9	42.4	42.4
SAAc,^e provides water to the population	39.9	40.0	41.8	37.7	42.9	42.4	42.4
Number of residential economies (occasional use)^d	33.9	33.4	38.8	38.2	44.6	43.2	43.7
Institution type^d	40.2	38.0	38.9	35.3	39.7	39.3	39.6
Institution name^d	40.2	38.0	38.9	35.3	39.7	39.3	39.6
CNPJ of the institution^d	40.2	38.0	38.9	35.3	39.7	39.3	39.6
Institution’s acronym^d	10.1	9.0	8.9	7.7	8.3	7.9	7.8
Name of regional/local office^d	10.1	9.0	8.9	7.7	8.3	7.9	7.8
CNPJ of regional/local office^d	10.1	9.0	8.9	7.7	8.3	7.9	7.8
Another type of supply^d	3.2	3.9	4.3	11.1	4.9	5.2	5.3

Variable	Average of initial completeness (%)	Quality	Average of final completeness (%)	Final incompleteness (%)	Quality
Geographical region^a	100.0	Excellent	100.0	0.0	Excellent
Federative Unit	100.0	Excellent	100.0	0.0	Excellent
Regional Health Care^a	100.0	Excellent	100.0	0.0	Excellent
Municipality^a	100.0	Excellent	100.0	0.0	Excellent
IBGE Code^a,b	100.0	Excellent	100.0	0.0	Excellent
Type of form of supply^a	100.0	Excellent	100.0	0.0	Excellent
Form of water supply code^a	100.0	Excellent	100.0	0.0	Excellent
Name of the form of water supply^a	100.0	Excellent	100.0	0.0	Excellent
Reference year^a	100.0	Excellent	100.0	0.0	Excellent
Date of registration^a	100.0	Excellent	100.0	0.0	Excellent
Date of completion^a	100.0	Excellent	100.0	0.0	Excellent
Surface water collection^a	100.0	Excellent	100.0	0.0	Excellent
Underground water collection^a	100.0	Excellent	100.0	0.0	Excellent
Inhabitant/household ratio^a	100.0	Excellent	100.0	0.0	Excellent
Number of residential economies (permanent households)^a	100.0	Excellent	99.9	0.1	Excellent
Filtration^c	95.2	Excellent	91.1	8.9	Good
Disinfection^c	94.7	Good	90.2	9.8	Good
Cistern^d	88.4	Regular	100.0	0.0	Excellent
Rainwater harvesting^d	88.4	Regular	100.0	0.0	Excellent
Water tank^d	47.4	Very poor	100.0	0.0	Excellent
No reservoir^d	47.4	Very poor	100.0	0.0	Excellent
SAA/SAC provide water to the population^c,e,f	47.4	Very poor	100.0	0.0	Excellent
Water tank truck^d	41.0	Very poor	100.0	0.0	Excellent
Fountain^d	41.0	Very poor	100.0	0.0	Excellent
Spring^d	41.0	Very poor	100.0	0.0	Excellent
Pipeline^d	41.0	Very poor	100.0	0.0	Excellent
SAAc,^e provides water to the population	41.0	Very poor	100.0	0.0	Excellent
Number of residential economies (occasional use)^d	39.4	Very poor	52.5	47.5	Poor
Institution type^d	38.7	Very poor	73.8	26.2	Regular
Institution name^d	38.7	Very poor	73.8	26.2	Regular
CNPJ of the institution^d	38.7	Very poor	73.8	26.2	Regular
Institution’s acronym^d	8.5	Very poor	15.9	84.1	Very poor
Name of regional/local office^d	8.5	Very poor	15.9	84.1	Very poor
CNPJ of regional/local office^d	8.5	Very poor	15.9	84.1	Very poor
Another type of supply^d	5.4	Very poor	6.4	93.6	Very poor

Secretaria de Vigilância em Saúde e Ambiente - Ministério da Saúde do Brasil SRTVN Quadra 701, Via W5 Norte, Lote D, Edifício P0700, CEP: 70719-040, +55 61 3315-3464, Fax: +55 61 3315-3464 - Brasília - DF - Brazil
E-mail: ress.svs@gmail.com

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[1] Correspondence
Renan Neves da Mata renanrn@gmail.com