Table 1.
Baseline characteristics of population-based sample and analysis sample
|
Income measure |
Population sample |
Analysis sample |
p-value
a
|
||
|---|---|---|---|---|---|
| |
n = 595 |
n = 517 |
|
||
| % | N | % | N | ||
|
Low-income at birth |
|
|
|
|
0.50 |
| Yes |
44 |
257 |
43 |
220 |
|
| No |
56 |
334 |
57 |
293 |
|
| Missing |
|
4 |
|
4 |
|
|
Early-life risk factors |
|
|
|
|
|
|
Maternal overweight/obesity |
|
|
|
0.57 |
|
| Yes |
50 |
295 |
49 |
254 |
|
| No |
50 |
300 |
51 |
263 |
|
|
Gestational weight gain |
|
|
|
|
0.28 |
| Excessive |
47 |
282 |
47 |
244 |
|
| Inadequate |
18 |
106 |
17 |
88 |
|
| Within recommendations |
35 |
207 |
36 |
185 |
|
|
Smoking during pregnancy |
|
|
|
|
0.89 |
| Yes |
20 |
114 |
20 |
99 |
|
| No |
80 |
477 |
80 |
414 |
|
| Missing |
|
4 |
|
4 |
|
|
Control Variables |
|
|
|
|
|
|
Multiparious |
|
|
|
|
0.23 |
| Yes |
41 |
243 |
42 |
216 |
|
| No |
49 |
352 |
48 |
301 |
|
|
Age category |
|
|
|
|
0.14 |
| 18 to 25 years |
26 |
153 |
27 |
140 |
|
| 25 years to 30 years |
33 |
195 |
32 |
167 |
|
| Older than 30 years |
41 |
247 |
41 |
210 |
|
|
Birthweight |
|
|
|
|
0.17 |
| <3265 grams |
26 |
157 |
25 |
128 |
|
| ≥3930 grams |
25 |
147 |
25 |
128 |
|
| 3265 - <3930 grams |
49 |
291 |
50 |
261 |
|
|
Sex |
|
|
|
|
0.12 |
| Female |
47 |
278 |
48 |
248 |
|
| Male | 53 | 317 | 52 | 269 | |
aChi-squared analysis p-value comparing analysis sample and those not included (n = 68) from the population sample.