Table 2.
Proportions (SE) and unadjusted OR (95% CI) of spontaneous abortions and stillbirths according to maternal anthropometry – Brazil, DHS/2006
| Maternal anthropometry | n |
Spontaneous abortions |
Stillbirths |
Total deaths |
|||
|---|---|---|---|---|---|---|---|
| % ± (SE) | Unadjusted OR (95%CI) | % ± (SE) | Unadjusted OR (95%CI) | % ± (SE) | Unadjusted OR (95%CI) | ||
|
Maternal BMI (Kg/m
2
) | |||||||
| Underweight (<18.5) |
251 |
4.5 (1.7) |
0.55 (0.25-1.22) |
0.1 (0.1) |
0.08 (0.01-0.63)
*
|
4.6 (1.7) |
0.49 (0.22-1.06) |
| Normal (18.5-24.9) |
3,302 |
7.8 (0.8) |
1.00 |
1.2 (0.3) |
1.00 |
9.0 (0.8) |
1.00 |
| Overweight (25–29.9) |
1,645 |
7.4 (1.3) |
0.94 (0.63-1.41) |
1.4 (0.5) |
1.10 (0.44-2.79) |
8.6 (1.3) |
0.96 (0.67-1.56) |
| Obese 1 (≥ 30 -34.99) |
625 |
6.6 (1.6) |
0.84 (0.49-1.44) |
2.2 (0.9) |
1.83 (0.72-4.67) |
8.7 (1.8) |
0.97 (0.60-1.56) |
| Obese 2–3 (≥ 35) |
359 |
14.3 (3.1) |
1.96 (1.16-3.30)
*
|
3.4 (2.4) |
2.81 (0.60-13.22) |
17.1 (2.8) |
2.10 (1.36-3.25)
*
|
|
Maternal BMI (per 1 Kg/m
2
) |
6,182 |
- |
1.03 (1.00-1.07) |
- |
1.07 (1.00-1.14)
*
|
- |
1.04 (1.01-1.07)
*
|
|
Maternal WC (cm) | |||||||
| Normal (< 80) |
2,782 |
7.4 (0.8) |
1.00 |
0.9 (0.3) |
1.00 |
8.3 (0.9) |
1.00 |
| Overweight (80–87.9) |
1,457 |
7.9 (1.2) |
1.06 (0.71-1.60) |
1.3 (0.6) |
1.41 (0.48-4.23) |
9.1 (1.3) |
1.10 (0.75-1.60) |
| Obese (≥ 88) |
1,758 |
8.2 (1.3) |
1.10 (0.74-1.63) |
2.4 (0.6) |
2.61 (1.13-6.04)
*
|
10.2 (1.3) |
1.26 (0.90-1.75) |
|
Maternal WC (per 1 cm) |
5,997 |
- |
1.01 (1.00-1.03) |
- |
1.03 (1.00-1.06) |
- |
1.02 (1.00-1.03)
*
|
|
Maternal WHR | |||||||
| 1st quartile |
1,494 |
6.6 (1.0) |
1.00 |
0.8 (0.4) |
1.00 |
7.4 (1.0) |
1.00 |
| 2nd quartile |
1,495 |
8.1 (1.3) |
1.25 (0.78-1.98) |
0.9 (0.4) |
1.09 (0.30-3.92) |
8.9 (1.3) |
1.23 (0.80-1.90) |
| 3rd quartile |
1,490 |
8.0 (1.2) |
1.23 (0.79-1.93) |
1.3 (0.5) |
1.53 (0.48-4.88) |
9.2 (1.3) |
1.27 (0.84-1.93) |
| 4th quartile |
1,494 |
8.4 (1.5) |
1.30 (0.80-2.12) |
2.8 (0.8) |
3.42 (1.15-10.13)
*
|
10.9 (1.5) |
1.55 (1.02-2.35)
*
|
| Maternal WHR (per 0.1) | 5,973 | - | 1.19 (0.94-1.51) | - | 1.78 (1.13-2.81) * | - | 1.29 (1.06-1.55) * |
* p < 0.05; BMI Body Mass Index, WC Waist Circumference, WHR Waist-to-Height Ratio, OR Odds Ratio, SE Standard Error, 95%CI 95% Confidence Interval.