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Table 2 Effects of training plus collaborative improvement on data quality: results of segmented regression modelling

From: Effectiveness of in-service training plus the collaborative improvement strategy on the quality of routine malaria surveillance data: results of a pilot study in Kayunga District, Uganda

  Completeness
Estimate (95% confidence interval)
%-points
Accuracy
Discordance between data sources†
Estimate (95% confidence interval)
%-points
All fields All clinically-relevant fields Malaria cases (OPD vs. report) Test positivity rate (lab vs. report)
Baseline 15.0 (7.7, 22.2)*** 30.5 (27.8, 33.1)*** 6.7 (0.8, 12.6)* 20.1 (13.1, 27.2)***
Baseline slope (per month) 0.7 (− 0.4, 1.7) 0.9 (0.6, 1.3)*** 0.1 (− 0.8, 0.9) − 0.6 (− 1.6, 0.4)
Immediate change after TCI 70.4 (60.8, 80.0)*** 68.2 (64.6, 71.7)*** − 0.9 (− 8.7, 6.9)† − 15.8 (− 25.1, − 6.5)**†
Change in slope after TCI (per month) − 1.6 (− 2.8, − 0.3)** − 1.0 (− 1.5, − 0.6)*** − 0.3 (− 1.4, 0.7)† 0.7 (− 0.6, 1.9)†
TCI single effect (absolute difference at follow-up mid-point) 60.1 (46.9, 73.2)*** 61.6 (56.6, 66.7)*
TCI single effect (relative difference at follow-up mid-point) − 47.4 (− 177.0, 82.2) − 57.4 (− 105.5, − 9.3)**
  1. No significant autocorrelation was observed in the models
  2. TCI in-service training plus collaborative improvement, OPD outpatient department register
  3. *p < 0.05; **p < 0.01; ***p < 0.001. †Negative values for accuracy indicators are a sign of improvement