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Table 3 Reference intervals (90% CI) for combined female/male for hemoglobin and mean capsular volume

From: Reference intervals for hemoglobin and mean corpuscular volume in an ethnically diverse community sample of Canadian children 2 to 36 months

Age

Reference Intervals (90% CI)

Lower

Upper

Hemoglobin (HGB)

Year 1

101.0 (100.2–101.8)

131.8 (131.1–132.6)

  Month 1 – Month 6

101.2 (99.4–103.0)

131.0 (129.2–132.8)

  Month 7 – Month 9

100.0 (98.7–101.4)

130.8 (129.4–132.2)

  Month 10- Month 12

101.7 (100.6–102.9)

132.7 (131.6–133.8)

Year 2

103.6 (102.9–104.3)

133.7 (133.3–135.4)

  Month 13 – Month 15

102.5 (101.2–103.9)

132.0 (130.0–133.0)

  Month 16 – Month 18

102.3 (100.9–103.7)

134.1 (132.8–135.5)

  Month 19 – Month 21

104.8 (103.2–106.7)

134.9 (133.1–136.8)

  Month 22 – Month 24

105.7 (104.5–106.9)

132.4 (131.3–133.6)

Year 3

105.9 (104.7–107)

133.1 (131.9–134.2)

  Month 25 – Month 30

106.1 (104.8–107.4)

133.4 (132.1–134.6)

  Month 31 – Month 36

105.1 (102.8–107.5)

132.7 (130.1–135.0)

Mean Capsular Volume (MCV)

Year 1

70.7 (69.8–71.5)

85.8 (84.8–88.2)

  Month 1 – Month 6

68.9 (67.6–70.2)

90.9 (89.6–92.3)

  Month 7 – Month 9

71.2 (70.6–71.8)

84.4 (83.8–85.0)

  Month 10- Month 12

70.1 (68.8–71.3

84.3 (83.8–84.7)

Year 2

68.5 (68–69.1)

83.4 (82.9–83.7)

  Month 13 – Month 15

68.4 (66.8–70.1)

83.9 (83.2–85.0)

  Month 16 – Month 18

68.9 (67.7–70.1)

82.9 (82.3–84.6)

  Month 19 – Month 21

69.6 (68.7–70.4)

82.8 (81.7–86.6)

  Month 22 – Month 24

68.9 (67.4–69.2)

83.6 (82.4–85.4)

Year 3

71.3 (69.2–71.9)

83.5 (82.5–84.2)

  Month 25 – Month 30

70.2 (69–71.8)

83.5 (82.5–84.4)

  Month 31 – Month 36

72.4 (71.5–73.9)

84.4 (83.3–85.4)