|
Birth year adjusted analyses of parental sociodemographic characteristics and childhood leukemia. |
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| Sub-cohort |
ALL |
AML |
|||||
|
|
|||||||
| No. (%) |
No. (%) |
HR |
95% CI |
No. (%) |
HR |
95% CI |
|
|
|
|||||||
| Maternal age (continuous/5 year increase) |
8750 |
559 |
1.05 |
0.97–1.14 |
87 |
1.21 |
1.00–1.47 |
| missing |
0 |
1 |
0 |
||||
| Maternal Race |
|||||||
| black |
324 (4) |
9 (2) |
0.41 |
0.21–0.79 |
4 (5) |
1.20 |
0.43–3.33 |
| other/unknown |
519 (6) |
30 (5) |
0.87 |
0.60–1.28 |
6 (7) |
1.16 |
0.50–2.68 |
| white |
7907 (90) |
520 (93) |
ref. |
77 (89) |
ref. |
||
| missing |
0 (0) |
1 (0) |
0 (0) |
||||
| Maternal birthplace |
|||||||
| U.S. or U.S. territory |
8226 (94) |
532 (95) |
ref. |
76 (87) |
ref. |
||
| foreign born |
516 (6) |
26 (5) |
0.76 |
0.51–1.15 |
11 (13) |
2.18 |
1.14–4.18 |
| missing |
8 (0) |
2 (0) |
0 (0) |
||||
| Maternal Education |
|||||||
| high school |
3173 (38) |
179 (34) |
ref. |
29 (36) |
ref. |
||
| <high school |
902 (11) |
49 (9) |
0.96 |
0.69–1.33 |
8 (10) |
0.97 |
0.44–2.14 |
| >high school |
4209 (51) |
301 (57) |
1.21 |
1.00–1.47 |
44 (54) |
1.13 |
0.70–1.81 |
| missing |
466 (5) |
31 (6) |
6 (7) |
||||
| Marital status |
|||||||
| married |
6988 (80) |
459 (82) |
ref. |
75 (86) |
ref. |
||
| not married |
1754 (20) |
100 (18) |
0.84 |
0.67–1.05 |
12 (14) |
0.61 |
0.33–1.13 |
| missing |
8 (0) |
1 (0) |
0 (0) |
||||
Johnson et al. BMC Pediatrics 2008 8:7 doi:10.1186/1471-2431-8-7 |
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