Table 2 |
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|
Low Birthweight and Preterm delivery rates by mothers' age and gravidity |
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|
Characteristics |
LBW deliveries (72) |
Preterm deliveries (154) |
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|
|
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|
n |
% of age group |
p |
OR |
95% CI |
n |
% of age group |
p |
OR |
95% CI |
|
|
|
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|
Age (years) |
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|
|
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|
≤ 20* |
7/26 |
26.9 |
- |
1 |
- |
7/26 |
26.9 |
- |
1 |
- |
|
|
||||||||||
|
21 - 35 |
55/685 |
8.0 |
0.002 |
0.24 |
0.10, 0.59 |
130/685 |
18.9 |
0.450 |
0.64 |
0.26, 1.54 |
|
|
||||||||||
|
> 35 |
10/85 |
12.0 |
0.117 |
0.36 |
0.12, 1.08 |
18/85 |
21.7 |
0.729 |
0.73 |
0.27, 2.01 |
|
|
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|
No of previous pregnancies |
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|
|
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|
Primigravidae |
7/92 |
7.6 |
0.240 |
0.56 |
0.24, 1.30 |
9/92 |
9.8 |
0.026 |
0.41 |
0.19, 0.87 |
|
|
||||||||||
|
Secondigravidae* |
34/264 |
12.9 |
- |
1 |
- |
55/264 |
20.8 |
- |
1 |
- |
|
|
||||||||||
|
Multigravida |
31/440 |
7.0 |
< 0.001 |
0.05 |
0.03, 0,08 |
90/440 |
20.5 |
0.981 |
0.98 |
0.67, 1.42 |
|
|
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|
*reference category against which other groups were compared P values generated from Chi sq test, and OR from 2 × 2 table analyses |
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|
Tongo et al. BMC Pregnancy and Childbirth 2011 11:60 doi:10.1186/1471-2393-11-60 |
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