The Effects of Two Maternal Vitamin A Supplementation Regimens on Serum Retinol in Postpartum Mothers: A Randomised Controlled Trial in Brazil
Table 1
Baseline characteristics from Brazilian lactating mothers enrolled in a vitamin A supplementation trial; Recife, Brazilβ2007β2009.
Characteristics
400,000βUI vitamin A
200,000βUI vitamin A
value*
Mean
SD
Mean
SD
Age (y)
152
24.6
5.8
160
24.3
6.3
0.208
Pregnancy number
152
2.1
1.5
160
2.0
1.4
0.883
Pregnancy interval (months)
150
31.5
39.9
158
25.2
34.6
0.678
Antenatal consultations (number)
151
6.3
2.7
156
6.1
2.2
0.287
Years of education
152
8.8
2.8
158
8.8
2.5
0.786
Income (US$)
147
230.6
142.5
156
222.9
128.8
0.641
Weight (kg)
123
71.5
12.4
131
71.1
12.5
0.391
Height (m)
128
1.6
0.1
138
1.6
0.1
0.235
BMI (kg/m2)
113
28.5
4.2
121
28.3
4.6
0.809
Retinol (mol/L)
114
1.62
0.74
115
1.60
0.69
0.440
Haemoglobin (g/dL)
133
11.6
1.7
144
11.3
1.5
0.086
Vitamin A consumptionβ [Med; IQ]
69
1090.4
817.7β1648.5
72
1164.7
841.0β1748.7
0.760**
Med: median. CI: confidence interval. IQ: interquartile interval. β Dietary intake of vitamin A in equivalent of retinol.
*Student's -test for unpaired data.
**Mann-Whitney U test.
