Table VI.
Coefficients of the birth weight regression in the Natality 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 | 50.6*** (9.43) |
21.3*** (3.73) |
16.3*** (0.28) |
16.8** (8.30) |
8.00** (3.34) |
4.59*** (0.24) |
|
| Gestational age | 132.4*** (10.4) |
112.2*** (5.07) |
132.1*** (0.36) |
||||
| Female infant | −176.1** (80.4) |
−121.6*** (29.4) |
−109.1*** (2.17) |
−204.4*** (67.2) |
−121.1*** (25.9) |
−125.7*** (1.80) |
|
| Married mother | 21.9 (102.5) |
−64.7* (36.2) |
29.6*** (2.79) |
22.9 (85.7) |
−56.9* (31.9) |
26.1*** (2.31) |
|
| Acute illnesses during pregnancy | −383.7*** (111.9) |
−213.2*** (50.8) |
−294.5*** (4.21) |
−116.2 (95.8) |
−124.3*** (44.8) |
−150.9*** (3.51) |
|
| Chronic illnesses during pregnancy | −127.3 (126.8) |
−24.6 (45.8) |
−17.3*** (3.71) |
−15.0 (106.2) |
−23.0 (40.3) |
33.1*** (3.07) |
|
| Number of live births | 13.6 (34.2) |
19.1 (13.7) |
24.3*** (1.02) |
3.30 (28.6) |
26.2** (12.1) |
31.4*** (0.84) |
|
| Number of still births | −70.8* (42.0) |
−14.0 (17.3) |
−19.1*** (1.36) |
−24.2 (35.3) |
−7.23 (15.2) |
−5.02*** (1.13) |
|
| Maternal age < 20 | −69.6 (165.6) |
−75.3 (59.6) |
−49.3*** (4.56) |
−30.4 (139.5) |
−89.3* (52.4) |
−51.9*** (3.77) |
|
| Maternal age 20–25 | −100.6 (104.6) |
−31.5 (36.8) |
−13.4*** (2.87) |
−43.0 (87.4) |
−42.4 (32.4) |
−31.1*** (2.37) |
|
| Maternal age > 34 | −120.5 (118.6) |
−5.54 (48.8) |
−41.6*** (3.42) |
−141.4 (99.0) |
8.39 (42.9) |
−6.87** (2.83) |
|
| White race | 126.6 (186.9) |
95.9 (61.5) |
109.6*** (4.82) |
4.83 (156.4) |
119.5** (54.1) |
107.3*** (3.99) |
|
| Black race | −287.3 (229.8) |
−225.2*** (81.1) |
−76.6*** (5.58) |
−230.8 (192.0) |
−154.3** (71.4) |
−31.9*** (4.62) |
|
| Smoking during pregnancy | −63.9 (122.1) |
−215.5*** (40.8) |
−185.8*** (3.76) |
−1.81 (102.1) |
−193.8*** (35.9) |
−174.3*** (3.11) |
|
| Complete secondary school | −237.4** (111.2) |
−40.3 (40.6) |
5.81* (3.24) |
−103.0 (93.9) |
−25.4 (35.7) |
25.0*** (2.68) |
|
| Incomplete secondary school | −294.5** (125.4) |
−3.07 (47.8) |
23.2*** (3.70) |
−135.4 (105.7) |
12.1 (42.1) |
47.8*** (3.06) |
|
| Complete university | −263.5* (138.3) |
13.4 (52.9) |
31.2*** (3.94) |
−37.2 (117.2) |
23.4 (46.5) |
54.2*** (3.26) |
|
| Constant | 3723.1*** (517.6) |
3348.6*** (221.0) |
3300.7*** (21.2) |
−1556.4*** (600.4) |
−956.3*** (274.9) |
−1760.8*** (22.2) |
|
| Observations | 422 | 1700 | 297415 | 422 | 1700 | 297415 | |
Note: Regression coefficients (β) with standard errors (SE) in parentheses;
*
p < 0.1,
**
p < 0.05,
***
p < 0.01