Table 3

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

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%)


# P-value < .05

Wei et al. BMC Pediatrics 2009 9:18   doi:10.1186/1471-2431-9-18

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