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Table 3 Interrupted time series analysis: monthly blood examination rates pre/post-basic health care package introduction

From: Malaria elimination in remote communities requires integration of malaria control activities into general health care: an observational study and interrupted time series analysis in Myanmar

Cohort Pre-BHC trend (per year)
Rate Ratio (95% CI); p value
Step change at BHC introduction
Rate ratio (95% CI); p value
Post-BHC trend (per year)
Rate ratio (95% CI); p value
p value for change in trenda
1 0.60 (0.52,0.69); < 0.0001 2.28 (1.97,2.64); < 0.0001 1.08 (1.01,1.16); 0.03 < 0.0001
2 0.40 (0.31,0.53); < 0.0001 5.38 (3.96,7.32); < 0.0001 1.01 (0.87,1.18); 0.86 < 0.0001
3 0.99 (0.83,1.17); 0.91 1.71 (1.41,2.08); < 0.0001 1.03 (0.88,1.22); 0.71 0.51
4 0.76 (0.66,0.86); < 0.0001 1.10 (0.96,1.26); 0.16 0.89 (0.82,0.96); 0.002 0.01
  1. BHC basic health care, CI confidence interval
  2. aChange in trend from pre-BHC to post-BHC