Table 2 Characteristics of women participants with anemia classified by periods of occurrence.

From: Changes in the proportion of anemia among young women after the Great East Japan Earthquake: the Fukushima health management survey

Variables

Group

p-value

No anemia (A)

Anemia recovered (B)

Anemia

Overall

Post-hoc comparison

(n = 1,697)

(n = 283)

non-recovered (C)

  

(n = 601)

Age at disaster in 2011

30.7 (5.0)

31.0 (5.2)

32.0 (4.9)

 < 0.001

 < 0.001 for A vs. C, and 0.017 for B vs. C

Body weight (kg)

55.5 (11.5)

53.3 (8.5)

54.9 (11.0)

0.008

0.006 for A vs. B

Body mass index (kg/m2)

22.2 (4.4)

21.2 (3.3)

22.0 (4.2)

0.002

0.001 for A vs. B, and 0.033 for B vs. C

Waist (cm)

77.1 (10.4)

74.0 (8.9)

76.2 (9.8)

0.023

0.018 for A vs. B

Systolic blood pressure (mmHg)

111 (12)

110 (12)

113 (13)

0.002

0.007 for A vs. C, and 0.006 for B vs. C

Diastolic blood pressure (mmHg)

68 (10)

66 (10)

68 (10)

0.03

0.047 for A vs. B, and 0.027 for B vs. C

Medical history-n (%)

Medication for hypertension

15 (0.9)

3 (1.1)

9 (1.5)

0.454

 

Cerebrovascular disease

7 (0.4)

1 (1.0)

1 (0.2)

0.678

 

Heart disease

18 (1.1)

1 (0.4)

9 (1.6)

0.308

 

Current diabetes treatment

5 (0.3)

1 (0.4)

5 (0.9)

0.232

 

Current dyslipidemia treatment

7 (0.4)

1 (0.4)

5 (0.9)

0.448

 

Kidney disease

25 (1.7)

3 (1.2)

11 (2.1)

0.69

 

History of smoking-n (%)

302 (19.1)

26 (10.0)

78 (13.7)

 < 0.001

 < 0.001 for A vs. B, and 0.005 for A vs. C

Drinking habit of alcohol-n (%)

630 (38.1)

74 (26.8)

166 (28.2)

 < 0.001

 < 0.001 for A vs. B, and A vs. C

Relocated after the disaster-n (%)

To other municipalities

1,066 (62.8)

176 (62.2)

356 (59.2)

0.297

 

To other prefectures

303 (17.9)

54 (19.1)

95 (15.8)

0.4

 

Hematological characteristics

History diagnosed as anemia-n (%)

162 (10.1)

70 (26.3)

164 (28.8)

 < 0.001

 < 0.001 for A vs. B, and A vs. C

Peripheral blood counts

Red blood cells (106/μL)

4.58 (0.30)

4.39 (0.38)

4.46 (0.35)

 < 0.001

 < 0.001 for A vs. B, A vs. C, and 0.004 for B vs. C

Hemoglobin (g/dL)

13.7 (0.8)

12.1 (1.3)

12.2 (1.4)

 < 0.001

 < 0.001 for A vs. B and A vs. C

Hematocrit (%)

41.2 (2.2)

37.7 (3.1)

38.0 (3.4)

 < 0.001

 < 0.001 for A vs. B and A vs. C

Red cell indices

MCV (fl)

90.1 (4.0)

86.3 (7.6)

85.5 (7.4)

 < 0.001

 < 0.001 for A vs. B, and A vs. C

MCV < 80-n (%)

21 (1.2)

49 (17.3)

129 (21.5)

 < 0.001

 < 0.001 for A vs. B, and A vs. C

MCV > 100-n (%)

18 (1.1)

2 (0.7)

2 (0.3)

0.239

 

MCH

29.9 (1.5)

27.8 (3.2)

27.5 (3.2)

 < 0.001

 < 0.001 for A vs. B, and A vs. C

MCHC

33.1 (0.9)

32.2 (1.5)

32.1 (1.5)

 < 0.001

 < 0.001 for A vs. B, and A vs. C

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