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Table 3 Comparison of regression model diagnostics by match score threshold

From: Impact of linkage quality on inferences drawn from analyses using data with high rates of linkage errors in rural Tanzania

Sample n β SE χ2 p HR (95% CI) PPV
Gold standard 405 1.61 0.2033 62.4 <.0001 4.98 (3.34, 7.42)
Probabilistic linkage threshold, by match score threshold
 minimum 405 1.02 0.2383 18.2 <.0001 2.76 (1.73, 4.41) 0.612
 low 359 1.20 0.2579 21.7 <.0001 3.32 (2.00, 5.51) 0.649
 medium 235 0.86 0.4621 3.5 0.0615 2.37 (0.96, 5.87) 0.745
 high 106 0.53 1.1707 0.2 0.6501 1.70 (0.17, 16.87) 0.896
  1. Abbreviations: n - sample size; β - primary exposure coefficient; SE - standard error; χ2 - chi-square; p - p-value; HR - hazard ratio; CI - confidence interval; PPV - automated linkage algorithm’s positive predictive value
  2. Note: All models adjusted for age, sex, sub-village, and distance from household to CTC