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Table 4 Multinominal logistic regression of anemia etiology

From: A new diagnostic work-up for defining anemia etiologies: a cohort study in patients ≥ 50 years in general practices

Anemia etiology

Median (range) or count (%)

OR (95% CI)

P - value

Unknown (n = 819)

75 (50–99)

Reference group

-Age (per year)

348 (42.5)

-Male gender

 

Anemia severity

587 (71.7)

-Mild

200 (24.4)

-Moderate

32 (3.9)

-Severe

75 (50–99)

ACD (n = 1536)

-Age (per year)

73 (50–101)

1.00 (0.99–1.01)

0.65

-Male gender

959 (62)

2.18 (1.83–2.60)

< 0.001

Anemia severity

-Mild

879 (57)

 

Ref

-Moderate

608 (40)

1.32 (1.10–1.59)

0.003

-Severe

49 (3)

0.98 (0.62–1.55)

0.92

Renal (n = 130)

-Age (per year)

86 (63–102)

1.10 (1.07–1.12)

< 0.001

-Male gender

40 (30.8)

0.87 (0.57–1.31)

0.50

Anemia severity

-Mild

78 (60.0)

 

Ref

-Moderate

40 (30.8)

1.58 (1.06–2.36)

0.03

-Severe

12 (9.2)

2.61 (1.27–5.38)

0.010

IDA (n = 646)

-Age (per year)

67 (50–103)

0.96 (0.95–0.97)

< 0.001

-Male gender

237 (36.7)

0.72 (0.57–0.90)

0.003

Anemia severity

-Mild

257 (39.8)

 

Ref

-Moderate

232 (35.9)

2.90 (2.29–3.68)

< 0.001

-Severe

157 (24.3)

13.12 (8.63–19.94)

< 0.001

Vit B12 / FA def. (n = 52)

-Age (per year)

79 (50–100)

1.02 (1.00–1.05)

0.07

-Male gender

23 (44.2)

1.12 (0.63–2.00)

0.69

Anemia severity

-Mild

34 (65.4)

 

Ref

-Moderate

18 (34.6)

1.32 (0.74–2.35)

0.35

-Severe

NA

NA

Other etiologies (n = 66)

-Age (per year)

72 (50–100)

0.98 (0.96–1.00)

0.09

-Male gender

19 (28.8)

0.51 (0.29–0.90)

0.02

Anemia severity

-Mild

30 (45.5)

 

Ref

-Moderate

23 (34.8)

2.68 (1.52–4.71)

< 0.001

-Severe

13 (19.7)

8.95 (4.16–19.25)

< 0.001

Multiple (n = 903)

-Age (per year)

79 (50–103)

1.02 (1.01–1.03)

< 0.001

-Male gender

410 (45.4)

1.18 (0.97–1.44)

0.10

Anemia severity

-Mild

356 (39.4)

 

Ref

-Moderate

397 (44.0)

2.94 (2.39–3.63)

< 0.001

-Severe

150 (16.6)

7.95 (5.28–11.96)

< 0.001