Table 2.
Comparison of the distribution of age, sex, years of education, SES characteristics, and baseline exposure for the total cohort and those lost to follow up
| Characteristics | Variables | Participated | Loss to follow-up | P value | ||
|---|---|---|---|---|---|---|
| |
|
N |
% |
N |
% |
|
| Age |
|
|
|
|
|
|
| |
18-30 |
11911 |
23.6% |
7016 |
65.5% |
<0.001 |
| |
31-60 |
29775 |
59.1% |
3188 |
29.8% |
|
| |
+60 |
8684 |
17.2% |
500 |
4.7% |
|
| Sex |
|
|
|
|
|
|
| |
Male |
20482 |
40.7% |
5485 |
51.2% |
<0.001 |
| |
Female |
29888 |
59.3% |
5219 |
48.8% |
|
| Education |
|
|
|
|
|
|
| |
0 |
21684 |
43.0% |
2087 |
19.5% |
<0.001 |
| |
1-5 |
15809 |
31.4% |
3001 |
28.0% |
|
| |
+6 |
12877 |
25.6% |
5616 |
52.5% |
|
| SES |
|
|
|
|
|
|
| |
1 |
7778 |
15.4% |
1261 |
11.8% |
<0.001 |
| |
2 |
9221 |
18.3% |
1520 |
14.2% |
|
| |
3 |
10236 |
20.3% |
2451 |
22.9% |
|
| |
4 |
11047 |
21.9% |
2398 |
22.4% |
|
| |
5 |
12088 |
24.0% |
3074 |
28.7% |
|
| Baseline exposure |
|
|
|
|
|
|
| |
<10 |
4516 |
9.0% |
1050 |
9.8% |
<0.002 |
| |
10-49 |
18622 |
37.0% |
4064 |
38.0% |
|
| +50 | 57232 | 54.1% | 5590 | 52.3% | ||