TABLE 4.
Univariate Analysis of Factors Potentially Associated With Risk for AOM in Children in Rochester, New York
| Factor | No. (%) With AOM | ||
|---|---|---|---|
| <1 y | 1–2 y | 2–4 y | |
| Sex | |||
| Boy | 89 (27.8)a | 83 (29.9) | 31 (14.5) |
| Girl | 49 (17.4) | 57 (23.5) | 18 (9.8) |
| P | <.01 | .116 | .204 |
| Siblings | |||
| Yes | 85 (23.1) | 80 (25.7) | 29 (12.1) |
| No | 53 (22.7) | 60 (28.7) | 20 (12.6) |
| P | 1 | .515 | 1 |
| Family history of ear infection | |||
| Yes | 73 (28.9) | 69 (29.5) | 32 (16.5) |
| No | 62 (18.2) | 68 (24.1) | 15 (7.6) |
| P | .003 | .238 | .01 |
| Exposure to smoke | |||
| Yes | 5 (6.4) | 15 (27.3) | 3 (9.1) |
| No | 133 (25.4) | 125 (26.9) | 46 (12.6) |
| P | <.001 | 1 | .756 |
| Percentage breastfed at 6 mo (%) | |||
| 0 | 72 (24.1) | 76 (29.2) | 25 (13.4) |
| 50 | 15 (17.2) | 13 (16.5) | 3 (4.6) |
| 100 | 35 (23.0) | 33 (23.9) | 17 (14.8) |
| P | .404 | .065 | .109 |
| Risk of having AOM ever with breastfeeding significant (P = .024) | |||
| Atopy | |||
| Yes | 38 (24.2) | 42 (29.6) | 15 (12.9) |
| No | 90 (21.7) | 86 (24.6) | 30 (11.5) |
| P | .604 | .31 | .822 |
| Risk of having AOM ever with atopy is significant (P = .011) | |||
| Race | |||
| Non-Hispanic white | 113 (27) | 113 (29.0) | 40 (12.5) |
| African American | 7 (9.5) | 8 (18.6) | 5 (23.8) |
| Hispanic | 1 (4.5) | 2 (13.3) | 1 (20.0) |
| Asian American | 0 (0.0) | 4 (50.0) | 0 (0.0) |
| Multiracial | 11 (19.6) | 7 (17.1) | 1 (3.7) |
| Other | 2 (15.4) | 5 (38.5) | 2 (20) |
| P | <.01 | .121 | .311 |
| Day care at 12 mo | |||
| Center | 44 (54.3) | 81 (43.2) | 13 (18.8) |
| Home | 15 (30.0) | 50 (22.0) | 11 (12.2) |
| None | 58 (18.8) | 302 (23.5) | 71 (9.9) |
| P | <.0001 | <.001 | .131 |
a
Not all children had every visit, so percentages will vary slightly from total demographic.