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Table 1 Number of observations (Obs), median, minimum and maximum, lower and upper limits (90% confidence intervals, CI) of the determined reference intervals of ewes

From: Reference values for serum amyloid A, haptoglobin, lysozyme, zinc and iron in healthy lactating Lacaune sheep

Analyte   Obs Mean SD Median LRL 90% CI URL 90% CI Distribution Method
Haptoglobin mg/mL 83a 0.29 0.17 0.25 0.03 (0.01–0.12) 0.79 (0.68–0.86) NG NP
Serum amyloid A µg/mL 85b 12.2 15.2 8.6 2.6 (2.1–4.2) 59.74 (39.8–114.8) NG NP
Lysozyme µg/mL 85c 1.47 0.71 1.32 0.43 (0.31–0.61) 3.19 (2.57–3.78) NG NP
Zinc µg/dL 85d 78.9 37.6 73.9 9.2 (7.8–21.7) 170.6 (146.7–171.9) G NP
Iron mmol/L 86 26.6 5.8 26.9 13.7 (12–16.8) 38.6 (35.9–42.7) G NP
  1. LRL lower reference limit, URL upper reference limit, G gaussian, NG non gaussian, NP non parametric
  2. Lower letters excluded outliers: a 2.74, 2.18, and 2.98 mg/mL; b 239 µg/mL; c 4.81 µg/mL; d 259 and 254 µg/dL