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Table 2 Associations between pregnant women’s alcohol consumption and maternal anaemia in Northern Tanzania 2006–2010

From: Alcohol consumption among pregnant women in Northern Tanzania 2000–2010: a registry-based study

 

% of pregnancies

% of pregnancies associated with anaemia

Univariate analysis

Multivariable model(a)

Variables

RR (95 % CI)

p-value

ARR (95 % CI)

p-value

Anaemia during pregnancy (Hb < 11.0 g/dL) (n = 8778)(b)

 Drinks alcohol

26.7

46.5

0.81 (0.77 – 0.85)

< 0.001

0.84 (0.79 – 0.90)

< 0.001

 Drinks alcohol every day

0.4

43.6

0.76 (0.53 – 1.08)

0.126

0.82 (0.49 – 1.36)

0.439

 Drinks alcohol more than once a week

7.4

41.6

0.72 (0.66 – 0.79)

< 0.001

0.77 (0.68 – 0.87)

< 0.001

 Drinks alcohol once a week

2.9

44.0

0.77 (0.66 – 0.88)

< 0.001

0.78 (0.64 – 0.95)

0.012

 Drinks occasionally

16.0

49.2

0.85 (0.81 – 0.90)

< 0.001

0.88 (0.82 – 0.95)

0.002

 Abstains from alcohol

73.3

57.6

1.00

 

1.00

 

Severe anaemia during pregnancy (Hb < 7.0 g/dL) (n = 8778)(b)

 Drinks alcohol

26.7

6.1

0.75 (0.63 – 0.90)

0.002

0.74 (0.58 – 0.95)

0.016

 Drinks alcohol every day

0.4

12.8

1.58 (0.69 – 3.60)

0.276

1.12 (0.44 – 2.86)

0.811

 Drinks alcohol more than once a week

7.4

6.0

0.74 (0.54 – 1.02)

0.062

0.51 (0.32 – 0.80)

0.003

 Drinks alcohol once a week

2.9

6.3

0.78 (0.48 – 1.27)

0.318

0.70 (0.34 – 1.41)

0.318

 Drinks occasionally

16.0

5.9

0.73 (0.58 – 0.91)

0.006

0.87 (0.66 – 1.16)

0.353

 Abstains from alcohol

73.3

8.1

1.00

 

1.00

 

Mild/moderate anaemia during pregnancy (Hb 7.0 – 10.9 g/dL) (n = 8778)(b)

 Drinks alcohol

26.7

40.4

0.82 (0.77 – 0.86)

< 0.001

0.86 (0.80 – 0.93)

< 0.001

 Drinks alcohol every day

0.4

30.8

0.62 (0.39 – 1.00)

0.048

0.70 (0.35 – 1.39)

0.310

 Drinks alcohol more than once a week

7.4

35.6

0.72 (0.65 – 0.80)

< 0.001

0.82 (0.72 – 0.94)

0.004

 Drinks alcohol once a week

2.9

37.7

0.76 (0.65 – 0.89)

0.001

0.79 (0.64 – 0.98)

0.034

 Drinks occasionally

16.0

43.3

0.88 (0.82 – 0.93)

< 0.001

0.89 (0.81 – 0.97)

0.007

 Abstains from alcohol

73.3

49.5

1.00

 

1.00

 
  1. (a)In the multivariable analyses the associations with alcohol have for all the outcomes been adjusted for the following predictors: mother's age, mother's occupation, mother's tribe, mother's religion, mother's body mass index, mother's height, previous pregnancies, mother's current residence, mother's childhood residence, father's age, father's tribe, year of delivery, drinking water source, boiling of drinking water, mother's age at marriage and mother's HIV-status
  2. (b)For anaemia during pregnancy, mild/moderate anaemia and severe anaemia one data entry per pregnancy has been included. Results from anaemia, mild/moderate anaemia and severe anaemia are based on 8778 pregnancies registered from 2006 and onwards
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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