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Table 1 Crude time trends in data concordance across 26 public-sector health clinics undergoing data quality intervention, 2009–2012, Sofala Province, Mozambique

From: Effects of a health information system data quality intervention on concordance in Mozambique: time-series analyses from 2009–2012

Characteristic β* (95% CI) Model-fitted concordance (%) Raw median concordance (%) P-value
Monthly change in concordance     
  2009-2010 −0.237 (−1.00, 0.567) 53.5 56.3 0.54
  2010-2011 (intervention began) 1.04 (0.596, 1.49) 59.0 62.5 <0.0001
  2011-2012 1.56 (0.887, 2.22) 74.8 81.3 <0.0001
  2012-2013 0.091 (−0.394, 0.577) 84.0 87.5 0.71
Overall average monthly change 0.877 (0.676, 1.08) 67.8 75.0 <0.0001
  1. *β represents unadjusted monthly change in percent data concordance through use of a linear mixed model with random intercepts for clinics and random slopes over time. A linear spline was used to model time with knots at 12 (January 2010), 24 (January 2011), and 36 (January 2012) months of data collection.