Mild Anemia and Pregnancy Outcome in a Swiss Collective
Table 1
Demographic and clinical characteristics.
(a)
Group 1
Group 2
Group 3
Group 4
All women
Pregnant women
25/382 (6.5)
123/382 (32.2)
45/382 (11.8)
189/382 (49.5)
382
Maternal age (years)
30.3 ± 5.9 (21.2–38.7)
29.7 ± 5.7 (21.2–44.9)
30.1 ± 6.3 (20.2–41.9)
30.8 ± 5.9 (18.9–44.3)
30.3 ± 5.9 (18.9–44.9)
Gravidity
2.8 ± 1.8 (1–7)
2.4 ± 1.4 (1–7)
2.3 ± 1.5 (1–8)
2.3 ± 1.7 (1–14)
2.4 ± 1.6 (1–14)
=1
7/25 (28.0)
36/123 (29.2)
18/45 (40.0)
74/189 (39.2)
135/382 (35.3)
2–4
14/25 (56.0)
77/123 (62.6)
24/45 (53.3)
100/189 (52.9)
215/382 (56.3)
5
4/25 (16.0)
10/123 (8.2)
3/45 (6.7)
15/189 (7.9)
32/382 (8.4)
Parity
2.3 ± 1.3 (1–5)
1.9 ± 0.9 (1–5)
1.7 ± 0.8 (1–4)
1.7 ± 1.0 (1–6)
1.8 ± 0.9 (1–6)
=1
9/25 (36.0)
43/123 (35.0)
22/45 (48.9)
101/189 (53.4)
175/382 (45.8)
2-3
12/25 (48.0)
72/123 (58.5)
22/45 (48.9)
78/189 (41.3)
184/382 (48.2)
4
4/25 (16.0)
8/123 (6.5)
1/45 (2.2)
10/189 (5.3)
23/382 (6.1)
Gestational age at delivery (wk)
38.6 ± 2.3 (30–41)
38.9 ± 1.9 (29–42)
38.7 ± 1.8 (33–41)
38.7 ± 2.6 (25–42)
38.7 ± 2.9 (25–42)
<37
2/25 (8)
7/123 (5.7)
2/45 (4.4)
18/189 (9.5)
29/382 (7.6)
37–42
23/25 (92)
116/123 (94.3)
43/45 (95.6)
171/189 (90.5)
353/382 (92.4)
Gestational age at enrolment (wk)
16.3 ± 1.3 (15–19)
16.4 ± 1.3 (15–20)
16.4 ± 1.3 (15–19)
16.2 ± 1.2 (15–19)
16.3 ± 1.4 (15–20)
BMI (kg/m2)
22.9 ± 4.8 (18.2–35.5)
23.5 ± 5.5 (15.4–50.9)
24.1 ± 4.3 (17.6–32.6)
24.2 ± 5.1 (17.8–45.2)
23.9 ± 5.1 (15.4–50.9)
Origin of mother
Europe + North America
2/25 (8.0)
37/123 (30.1)
7/45 (15.6)
76/189 (40.2)
122/382 (31.9)
Former Yugoslavia
12/28 (48.0)
49/123 (39.8)
16/45 (35.6)
50/189 (26.5)
127/382 (33.2)
Developing countries
11/25 (44.0)
37/123 (30.1)
22/45 (48.9)
63/189 (33.3)
133/382 (34.8)
Data expressed as mean ± s.d. (range) or number (%).
(b)
P value
1 versus 4
2 versus 4
3 versus 4
1, 2, and 3 versus 4
Maternal age
0.827
0.068
0.336
0.082
Gravidity
0.121
0.144
0.913
0.153
Parity
0.029*
0.005**
0.797
0.006*
Gestational age at delivery
0.633
0.687
0.485
0.919
BMI
0.19
0.383
0.941
0.31
Origin of mother
0.05
0.038*
0.008*
0.001**
P value < 0.05; **P value < 0.005. Group 1: iron deficiency anemia. Group 2: depleted iron stores. Group 3: anemia for other reasons. Group 4: normal status.
