Table 3.

Associations between low birth weight (LBW) and maternal risk factors among mothers in Bale Zone, South east Ethiopia, August, 2013

Factors	LBW		NBW		Crude OR (95 % CI)	p-value	Adjusted OR (95 % CI)	P-Value
	No	%	No	%
ANC visit
Yes	98	76.0	228	88.4	1		1
No	31	24.0	30	11.6	2.4 [1.38,4.19]	0.002	2.9 [1.23, 6.94]	0.014
Gestational age at first ANC visit (months)
< 4	11	11.2	33	14.5	1
4–6	64	65.3	158	69.3	1.2 [0.58,2.55]	0.606
> 6	23	23.5	37	16.2	1.9 [0.79,4.40]	0.155
Maternal height (meter)
≤ 1.50	20	15.5	16	6.2	2.8 [1.38,5.62]	0.004	3.7 [1.22,11.28]	0.021
> 1.50	109	84.5	242	93.8			1
Maternal weight (Kg)
< 50	16	12.4	12	4.7	2.9 [1.33,6.34]	0.007
≥ 50	113	87.6	246	95.3	1
Maternal BMI (Kg/m2)
< 18.50	12	9.3	3	1.2	9.3 [2.34,36.6]	0.002	6.7 [1.21,37.14]	0.029
18.50–25.00	98	76.0	211	81.8	1.1 [0.60,1.94]	0.808	1.2 [0.51, 3.10]	0.617
> 25.00	19	14.7	44	17.1	1		1
Gravida
Primigravida	61	47.3	73	28.3	2.6 [1.62,4.10]	<0.001
Multigravida	50	38.7	154	59.7	1
Grandmultigravida	18	14.0	31	12.0	1.8 [0.92,3.47]	0.086
Pregnancy Related health problem
Yes	37	28.7	24	9.3	3.9 [2.22,6.92]	<0.001	6.3 [2.76,14.48]	<0.001
No	92	71.3	234	90.7	1		1
Birth interval in year
≤ 2	32	49.2	43	25.3	2.9 [1.58,5.20]	<0.001	3.2 [1.59,6.31]	0.001
> 2	33	50.8	127	74.7	1		1
Deworming during pregnancy
Yes	20	15.5	60	23.3	1
No	109	84.5	198	76.7	1.7 [0.95,2.88]	0.078
Ever Khat chewing
Yes	30	23.3	18	7.0	4.0 [2.15,7.58]	<0.001	6.4 [2.42,17.10]	<0.001
No	99	76.7	240	93.0	1		1
Ever drunk alcohol
Yes	32	24.8	39	15.1	1.9 [1.10,3.13]	0.021
No	97	75.2	219	84.9	1