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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: J Pediatr. 2012 Jul 25;162(1):42–49.e1. doi: 10.1016/j.jpeds.2012.06.040

Table V.

Coefficients of the birth weight regressions in the ECLAMC samples

Non-isolated
clefts
β (SE)
Isolated
clefts
β (SE)
No clefts

β (SE)
Non-isolated
clefts
β (SE)
Isolated
clefts
β (SE)
No clefts

β (SE)

Gestational age not included as a covariate Gestational age included as a covariate

Prenatal visits 107.5***
(12.94)
69.44***
(7.470)
39.52***
(1.585)
33.37***
(10.93)
32.25***
(6.494)
19.42***
(1.462)
Gestational age 124.8***
(5.894)
114.3***
(4.878)
86.90***
(1.200)
Conception difficulty −112.7
(106.4)
−33.49
(68.60)
−37.88***
(14.56)
−110.0
(85.06)
−42.80
(57.83)
−38.18***
(13.18)
Acute illnesses during pregnancy −22.64
(59.07)
−98.96***
(36.45)
−53.75***
(7.499)
−18.81
(47.24)
−55.91*
(30.78)
−30.41***
(6.799)
Chronic illnesses during pregnancy 14.57
(79.06)
5.838
(48.73)
−71.14***
(10.48)
53.00
(63.25)
12.53
(41.08)
−41.14***
(9.504)
Vaginal bleeding in first trimester −145.9
(101.9)
−300.4***
(68.01)
−55.32***
(16.23)
22.14
(81.90)
−189.9***
(57.52)
−23.22
(14.70)
Number of live births 60.85***
(19.09)
24.66**
(11.26)
20.95***
(2.569)
36.17**
(15.31)
18.79**
(9.497)
21.49***
(2.327)
Number of still births −124.9***
(39.40)
−1.680
(25.62)
−10.72*
(6.314)
−93.79***
(31.54)
−5.614
(21.59)
−6.498
(5.718)
Completed primary school −4.286
(89.45)
76.91
(54.58)
−15.03
(11.20)
44.74
(71.57)
30.76
(46.05)
−10.83
(10.15)
Incomplete secondary school −100.2
(90.46)
38.67
(53.97)
−27.58**
(11.01)
−50.39
(72.38)
27.98
(45.49)
−20.05**
(9.969)
Complete secondary school −96.81
(97.31)
62.43
(59.98)
−5.448
(11.71)
−49.47
(77.86)
52.25
(50.56)
0.455
(10.61)
Incomplete university −18.99
(162.2)
−80.20
(89.22)
−35.81*
(20.25)
12.38
(129.7)
−99.98
(75.21)
−24.28
(18.34)
Complete university −125.9
(199.7)
86.19
(118.8)
−73.04***
(25.94)
61.53
(160.0)
157.8
(100.2)
−35.24
(23.50)
Unskilled blue collar 151.9*
(91.50)
−40.34
(61.97)
−7.187
(12.28)
168.5**
(73.18)
−54.08
(52.24)
−7.519
(11.12)
Skilled blue collar 108.1
(147.0)
30.34
(93.11)
−14.43
(18.88)
58.76
(117.6)
37.45
(78.49)
−6.282
(17.10)
Independent worker −276.8
(215.4)
−139.5
(123.8)
66.53**
(28.41)
25.88
(172.9)
−114.7
(104.3)
59.23**
(25.73)
Clerical positions −45.67
(108.6)
−82.92
(70.18)
17.63
(13.43)
−66.72
(86.87)
−86.06
(59.16)
24.86**
(12.16)
Executive, Boss −358.5
(233.7)
−226.4
(146.3)
37.31
(28.07)
−248.8
(187.0)
−255.8**
(123.3)
42.62*
(25.42)
Maternal age < 20 −58.87
(95.75)
−40.36
(56.75)
−83.02***
(11.32)
−54.33
(76.58)
−36.33
(47.84)
−70.49***
(10.26)
Maternal age 20–25 −30.63
(76.78)
−58.53
(44.97)
−14.91*
(9.045)
−35.12
(61.41)
−72.83*
(37.91)
−24.20***
(8.193)
Maternal age > 34 −289.8***
(88.07)
−58.57
(57.65)
−16.20
(12.31)
−208.5***
(70.54)
20.13
(48.72)
12.64
(11.15)
Female infant −164.5***
(58.03)
−129.4***
(34.44)
−106.3***
(6.987)
−117.1**
(46.46)
−132.0***
(29.04)
−110.2***
(6.328)
Native ancestry −3.419
(117.0)
8.774
(69.70)
3.596
(13.75)
17.95
(93.56)
12.16
(58.76)
4.628
(12.46)
African ancestry 213.9
(145.1)
−79.46
(97.47)
4.552
(17.12)
52.94
(116.3)
−45.07
(82.18)
3.579
(15.50)
Constant 1991.5***
(317.9)
2563.1***
(201.0)
2966.9***
(40.53)
−2556.5***
(332.8)
−1561.6***
(244.3)
−302.0***
(58.18)

Observations 921 1484 24046 921 1484 24046

Note: Regression coefficients (β) with standard errors (SE) in parentheses;

*

p < 0.1,

**

p < 0.05,

***

p < 0.01