Yield of testing for micronutrient deficiencies associated with pancreatic exocrine insufficiency in a clinical setting: An observational study

Table 3 Assessment of significant micronutrient deficiency to predict pancreatic exocrine insufficiency (Faecal Elastase-1 < 200 µg/g)

	Prealbumin	Selenium	Magnesium
Sensitivity	19.5% [95%CI: 8.8-34.9]	14.6% [95%CI: 6.6-33.7]	9.8 % [95%CI: 3.3-21.4]
Specificity	97.2% [95%CI: 90.2-99.7]	98.5% [95%CI: 92.1-99.7]	98.6% [95%CI: 92.4-100]
PPV	80.0% [95%CI: 47.1-94.7]	85.7% [95%CI: 42.1-99.6]	83.3% [95%CI: 37.6-97.7]
NPV	67.7% [95%CI: 64.2-71]	66.7% [95%CI: 56.8-75.6]	60.3% [95%CI: 58.1-62.2]
Accuracy	68.8% [95%CI: 59.3-77.2]	67.9% [95%CI: 58.4-76.3]	61.5% [95%CI: 52.2-70.1]

PPV: Positive predictive value; NPV: Negative predictive value.