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Table 3 Agreement between chart review and HMO immunization registry on ever refusal status

From: Identification and characteristics of vaccine refusers

Agreement %
(95% CI)
HMO A
  Two years old and under
n= 525
Six years old
n= 215
Sensitivity 58.5% (47.1%, 69.2%) 52.5% (36.3%, 68.2%)
Specificity 89.8% (86.6%, 92.4%) 92.6% (87.4%, 95.8%)
Positive predictive value 51.6% (41.1%, 62.0%) 61.8% # (43.6%, 77.3%)
Negative Predict value 92.1% (89.1%, 94.4%) 89.5% (83.9%, 93.4%)
Kappa 45.9% (35.8%, 56.0%) 47.8% (32.4%, 63.3%)
  HMO B
  Two years old and under n = 315 Six years old n = 194
Sensitivity 79.8% (71.7%, 86.2%) 89.7% # (74.8%, 96.7%)
Specificity 80.1% (73.5%, 85.5%) 84.5% (77.6%, 89.6%)
Positive predictive value 73.6% (65.3%, 80.5%) 59.3% # (45.8%, 71.7%)
Negative Predict value 85.1% (78.8%, 89.9%) 97.0% # (92.1%, 99.1%)
Kappa 59.2% (50.2%, 68.2%) 62.3% (50.0%, 74.6%)
  1. # P-value < .05