Table 1 Characteristics of 262 adults with iron deficiency or depletion¹

Age, y

54 ± 16

62 ± 16

42 ± 15

58

Body mass index, kg/m²

28.9 ± 7.6

29.0 ± 6.3

32.0 ± 9.4

29.6

Pica, % (n)

42.9 (79)

32.3 (10)

63.0 (29)

0

Fatigue, % (n)

41.3 (76)

41.9 (13)

54.3 (25)

100.0 (1)

Cardiopulmonary symptoms, % (n)

28.8 (53)

38.7 (12)

60.9 (28)

0

Epithelial manifestations, % (n)

26.1 (48)

16.1 (5)

19.6 (9)

0

Mental manifestations, % (n)

6.0 (11)

6.5 (2)

0

0

Neuromuscular symptoms, % (n)

4.9 (9)

6.5 (2)

6.5 (3)

0

Gastrointestinal blood loss, % (n)

42.4 (78)

77.4 (24)

17.4 (8)

100.0 (1)

Reproductive blood loss, % (n)

30.4 (56)

-

60.9 (28)

-

Medical blood loss, % (n)

14.1 (26)

9.7 (3)

4.4 (2)

0

Hematuria, % (n)

1.6 (3)

0

0

0

Epistaxis, % (n)

0

6.5 (2)

0

0

Chronic malabsorption, % (n)

12.0 (22)

3.2 (1)

13.0 (6)

0

Unknown cause of iron deficiency/depletion, % (n)

6.5 (12)

9.7 (3)

8.7 (4)

0

Hemoglobin, g/L

106 ± 19

105 ± 25

93 ± 20

13.6

MCV, fL

79.5 ± 9.9

78.6 ± 8.2

72.5 ± 16.2

81.0

RBC × 10¹²/L

4.14 ± 0.63

4.16 ± 0.81

3.93 ± 0.69

5.45

RDW, %

17.3 ± 2.8

18.7 ± 3.5

19.3 ± 4.4

16.8

Platelets × 10⁹/L

327 ± 135

264 ± 84

367 ± 125

199

Lymphocytes × 10⁹/L

2.0 ± 0.9

1.8 ± 0.9

2.0 ± 0.9

3.7

Neutrophils × 10⁹/L

4.5 ± 2.2

4.4 ± 2.0

3.6 ± 1.5

3.4

SI, μmol/L

7 ± 5

7 ± 4

8 ± 6

9

TIBC, μmol/L

74 ± 13

70 ± 14

71 ± 14

60

TS, %

10 ± 7

11 ± 8

10 ± 6

15

SF, pmol/L

29 ± 25

36 ± 25

27 ± 22

58

Cancer in remission, % (n)

11.4 (21)

22.6 (7)

13.0 (6)

100.0 (1)

CVID, % (n)

21.2 (39)

0

0

0

Diabetes mellitus, % (n)

15.2 (28)

19.4 (6)

13.0 (6)

0

Hemochromatosis, % (n)

2.7 (5)

0

0

0

Anemia, % (n)

46.2 (85)

90.3 (28)

93.5 (43)

0

Thrombocytosis, % (n)

14.1 (26)

0

21.7 (10)

0

Thrombocytopenia, % (n)

3.8 (7)

9.7 (3)

0

0

Iron deficiency, % (n)

63.6 (117)

48.4 (15)

69.6 (32)

0

Iron deficiency and anemia, % (n)

46.7 (86)

35.5 (11)

63.0 (29)

0