TABLE III.
Association of Immunization Schedules with Childhood Rhabdomyosarcoma
| Immunization factors | Total N (%) | Controls N (%) | Cases N (%) | OR | 95% CI | ORa | 95% CI | P for trenda |
|---|---|---|---|---|---|---|---|---|
| Incomplete immunizations | ||||||||
| No | 561 (90.5) | 304 (96.2) | 257 (84.5) | 1.00 | Ref. | 1.00 | Ref. | |
| Yes | 59 (9.5) | 12 (3.8) | 47 (15.5) | 4.50 | 2.27-8.93 | 5.30 | 2.47-11.33 | |
| MMR vaccine | ||||||||
| Complete | 502 (78.0) | 261 (81.0) | 241 (74.8) | 1.00 | Ref. | 1.00 | Ref. | |
| None | 142 (22.1) | 61 (18.9) | 81 (25.2) | 1.57 | 1.02-2.40 | 1.43 | 0.92-2.21 | |
| DPT vaccine | ||||||||
| Complete | 459 (71.2) | 246 (76.4) | 213 (66.2) | 1.00 | Ref. | 1.00 | Ref. | |
| Incomplete | 162 (25.2) | 67 (20.8) | 95 (29.5) | 1.66 | 1.15-2.40 | 1.56 | 1.06-2.29 | |
| None | 23 (3.6) | 9 (2.8) | 14 (4.3) | 1.91 | 0.81-4.50 | 1.74 | 0.73-4.15 | 0.022 |
| Oral polio vaccine | ||||||||
| Complete | 459 (71.3) | 246 (76.4) | 213 (66.2) | 1.00 | Ref. | 1.00 | Ref. | |
| Incomplete | 162 (25.2) | 67 (20.8) | 95 (29.5) | 1.52 | 0.93-2.48 | 1.42 | 0.86-2.35 | |
| None | 23 (3.6) | 9 (2.8) | 14 (4.4) | 1.69 | 0.95-3.03 | 1.87 | 1.00-3.50 | 0.026 |
Abbreviations: OR=odds ratio; CI=confidence interval. Cases and controls pair matched on race, sex, and age
a
Adjusted for maternal education and total annual income (cases and controls pair matched on race, sex, and age)