Table 7.
Crude calculated risks of SGA after reduced smoking, underweight or shorter height prevalence
| Observed | SGA with reduced smoking prevalence * | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model 1 |
|
SGA |
|
SGA |
|
SGA |
|||
| Average income quintile |
% smokers |
n |
% |
% smokers |
n |
% |
% smokers |
n |
% |
| 1 ($6,196–$24,444) |
6.0 |
1018 |
8.9 |
3.9 |
1014 |
8.9 |
0.0 |
1006 |
8.8 |
| 2 ($24,444–$28,440) |
7.0 |
916 |
8.0 |
3.9 |
915 |
7.9 |
0.0 |
913 |
7.9 |
| 3 ($28,440–$32,954) |
6.8 |
876 |
7.3 |
3.9 |
871 |
7.3 |
0.0 |
864 |
7.2 |
| 4 ($32,986–$38,832) |
5.7 |
752 |
6.2 |
3.9 |
742 |
6.1 |
0.0 |
719 |
5.9 |
| 5 ($38,837–$509,269) |
3.9 |
675 |
5.6 |
3.9 |
675 |
5.6 |
0.0 |
660 |
5.5 |
| Total |
5.9 |
4237 |
7.2 |
3.9 |
4216 |
7.1 |
0.0 |
4162 |
7.0 |
| |
Observed |
|
|
SGA with reduced underweight prevalence * |
|||||
| Model 2 |
|
SGA |
|
SGA |
|
SGA |
|||
| Average income quintile |
% underweight |
n |
% |
% underweight |
n |
% |
% underweight |
n |
% |
| 1 ($6,196–$24,444) |
9.5 |
1018 |
8.9 |
5.6 |
992 |
8.7 |
0.0 |
955 |
8.3 |
| 2 ($24,444–$28,440) |
7.6 |
916 |
8.0 |
5.6 |
901 |
7.8 |
0.0 |
860 |
7.5 |
| 3 ($28,440–$32,954) |
6.5 |
876 |
7.3 |
5.6 |
867 |
7.3 |
0.0 |
815 |
6.8 |
| 4 ($32,986–$38,832) |
5.7 |
752 |
6.2 |
5.6 |
752 |
6.2 |
0.0 |
735 |
6.0 |
| 5 ($38,837–$509,269) |
5.6 |
675 |
5.6 |
5.6 |
675 |
5.6 |
0.0 |
628 |
5.2 |
| Total |
6.9 |
4237 |
7.2 |
5.6 |
4186 |
7.1 |
0.0 |
3992 |
6.8 |
| |
Observed |
|
|
SGA with reduced shorter height prevalence * |
|||||
| Model 3 |
|
SGA |
|
SGA |
|
SGA |
|||
| Average income quintile |
% shorter height** |
n |
% |
% shorter height |
n |
% |
% shorter height |
n |
% |
| 1 ($6,196–$24,444) |
85.9 |
1018 |
8.9 |
70.5 |
932 |
8.1 |
0.0 |
538 |
4.7 |
| 2 ($24,444–$28,440) |
81.6 |
916 |
8.0 |
70.5 |
864 |
7.5 |
0.0 |
533 |
4.6 |
| 3 ($28,440–$32,954) |
77.0 |
876 |
7.3 |
70.5 |
841 |
7.0 |
0.0 |
461 |
3.9 |
| 4 ($32,986–$38,832) |
72.5 |
752 |
6.2 |
70.5 |
743 |
6.1 |
0.0 |
410 |
3.4 |
| 5 ($38,837–$509,269) |
70.5 |
675 |
5.6 |
70.5 |
675 |
5.6 |
0.0 |
377 |
3.1 |
| Total | 77.4 | 4237 | 7.2 | 70.5 | 4055 | 6.9 | 0.0 | 2319 | 3.9 |
* SGA risks over 3.7 year period of study under scenarios of reduced maternal risk factors calculated by assuming crude risks of SGA would remain constant within joint levels of average income quintile and smoking (model 1), average income quintile and underweight (model 2), and average income quintile and shorter height (model 3).
** Shorter height defined as bottom four quintiles of height.