Age (years)
|
16.1
|
0.81
| | |
Body Mass Index (kg/m
2
)
|
19.9
|
3.09
| | |
Weeks of Gestation
a
|
39.2
|
2.37
| | |
Breastfeeding duration of index son (weeks)
b
|
36.9
|
25.2
| | |
Prior maternal breastfeeding (weeks)
b
|
18.1
|
38.3
| | |
Birth weight (gm)
c
|
3433
|
439
| | |
Current residential distance to Khimprom factory (km)
|
4.45
|
1.76
| | |
Time boy resided in Chapaevsk(yrs)
|
14.0
|
3.70
| | |
Gravidity
d
| | | | |
0
| | |
14
|
48
|
1
| | |
8
|
28
|
2–3
| | |
7
|
24
|
Parity
d
| | | | |
0
| | |
17
|
59
|
1
| | |
10
|
34
|
2–3
| | |
2
|
7
|
Monthly family income level
| | | | |
300–1000 rubles ($10–$35 U.S.)
| | |
8
|
28
|
1000–1500 rubles ($35–$50 U.S.)
| | |
7
|
24
|
>1500 rubles (> $50 U.S.)
| | |
14
|
48
|
Maximum parental education level
| | | | |
8–11
th
grade
| | |
2
|
7
|
Junior College
| | |
17
|
59
|
University
| | |
8
|
28
|