Table 1.
Demographics, unadjusted odds ratios, and excluded records, New Mexico 1991-2005
|
No. of records total 1990-2005: 451742 | ||||
|---|---|---|---|---|
|
Minimum no. in a year (1997): 27484 | ||||
| Maximum no. in a year (2005): 29456 | Frequency | % of total | % Preterm after Exclusions | Unadjusted Odds Ratio |
|
Ethnicity |
|
|
|
|
| Asian |
5889 |
1.3 |
8.66 |
0.97 |
| Other |
254 |
0.06 |
12.7 |
1.49 |
| White Hispanic |
219893 |
48.68 |
9.26 |
1.049 |
| Native American |
63115 |
13.97 |
7.77 |
0.869 |
| Black |
8378 |
1.85 |
12.7 |
1.49 |
| White Non-Hispanic |
154213 |
34.14 |
8.92 |
Reference |
| Missing |
26673 |
5.9 |
20 |
6 |
| Inadequate |
107576 |
23.81 |
8.66 |
2.28 |
| Intermediate |
80289 |
17.77 |
3.63 |
0.90 |
| Adequate |
139993 |
30.99 |
4 |
Reference |
| Intensive |
97211 |
21.52 |
18.01 |
5.27 |
|
Maternal Age | ||||
| < 15 |
1446 |
0.32 |
14.43 |
1.90 |
| 15-19 |
75920 |
16.81 |
9.76 |
1.22 |
| 20-24 |
135445 |
29.98 |
8.63 |
1.06 |
| 25-29 |
114764 |
25.4 |
8.16 |
Reference |
| 30-34 |
79154 |
17.52 |
8.91 |
1.10 |
| 35-39 |
36438 |
8.07 |
10.46 |
1.31 |
| > = 40 |
8307 |
1.84 |
12.4 |
1.59 |
| Missing |
268 |
0.06 |
|
|
|
Maternal Education Level (# of years) | ||||
| < 9 |
27216 |
6.02 |
8.75 |
0.96 |
| 9-12 |
259107 |
57.36 |
9.11 |
Reference |
| 13-16 |
120997 |
26.78 |
8.33 |
0.91 |
| > 16 |
30040 |
6.65 |
8.26 |
0.90 |
| Missing |
14382 |
3.18 |
|
|
|
Facility |
|
|
|
|
| hospital |
445529 |
98.62 |
9.05 |
Reference |
| birth center |
1192 |
0.26 |
1.68 |
0.17 |
| home |
4131 |
0.91 |
4.58 |
0.48 |
| other |
890 |
0.2 |
12.97 |
1.50 |
|
Maternal Marital Status |
|
|
|
|
| Missing |
4 |
0 |
|
|
| Married/inferred married |
253396 |
56.09 |
8.42 |
Reference |
| Unmarried/inferred unmarried |
198342 |
43.91 |
9.72 |
1.17 |
|
Maternal Tobacco Use |
|
|
|
|
| No |
399904 |
88.52 |
8.5 |
Reference |
| Yes |
45737 |
10.12 |
11.84 |
1.45 |
| Missing |
6101 |
1.35 |
20.49 |
2.77 |
|
Maternal Alcohol Use |
|
|
|
|
| No |
435079 |
96.31 |
8.71 |
Reference |
| Yes |
9540 |
2.11 |
13.02 |
1.57 |
| Missing |
7123 |
1.58 |
20.84 |
2.76 |
| No |
376322 |
83.30 |
7.25 |
Reference |
| Yes |
75420 |
16.7 |
17.69 |
2.75 |
|
Individual high risk factors* | ||||
| Lung |
7158 |
1.58 |
|
|
| Cardiac |
1996 |
0.44 |
|
|
| Diabetes |
15686 |
3.47 |
|
|
| Eclampsia |
3881 |
0.86 |
|
|
| Hydramnios/oligohydramnios |
7477 |
1.66 |
|
|
| Chronic hypertension |
3634 |
0.8 |
|
|
| Pregnancy-induced hypertension |
21189 |
4.69 |
|
|
| Incompetent cervix |
703 |
0.16 |
|
|
| Previous preterm infant |
4215 |
0.93 |
|
|
| Rh sensitization |
6032 |
1.34 |
|
|
| Tocolysis |
15749 |
3.49 |
|
|
|
Overall Preterm (estgest < 37) | ||||
| No |
410346 |
90.84 |
|
|
| Yes |
40550 |
8.98 |
|
|
| Missing estgest value |
846 |
0.19 |
|
|
|
Total exclusions for anomalies** |
9229 |
2.04 |
|
|
|
Multiple births or missing information on number born |
9950 |
2.20 |
|
|
| Out of state resident*** | 10926 | 2.42 | ||
* More than one risk factor may be present per unique record.
** Excluded anomalies: Anecephalus, Spina Bifida, Hydrocephalus, Microcephalus, Other Central Nervous System Anomaly, Heart Malfunction, Other Circulatory/Respiratory Anomaly, Rectal Atresia/Stenosis, Other Gastrointestinal Anomaly, Undescended Testicle, Hypospadias and Epispadias, Other Malformed Genitalia, Renal Agenesis, Other Urogenital Anomaly, Cleft Lip, Cleft Palate, Polydactyly, Syndactyly, Other Reduction Deformities, Congenital Dislocation of Hip, Other Musculoskeletal Integration, Down's Syndrome, Chromosomal Anomaly, Other Congenital Anomaly, and Undesignated Congenital Anomaly.
***This variable was included because of the large number of foreign nationals in New Mexico.