Table 4.
Adjusted risk ratios and confidence intervals (in parentheses) from a logistic regression model estimating a second pH1N1 vaccination before Feb. 1, 2010, among U.S. children under age 10 who had a first vaccination by Jan. 1, 2010; National Health Interview Survey, 2010
| Selected characteristic | Risk ratios estimating a second pH1N1 vaccination before Feb. 1, 2010, among children who had a first vaccination by Jan. 1, 2010 |
|---|---|
|
| |
| Sex | |
| Female | 1.00 (0.86-1.17) |
| Male (ref) | 1.00 |
|
| |
| Family structure | |
| Single parent | 0.60* (0.42-0.86) |
| Unmarried biological/adoptive | 0.44* (0.22-0.88) |
| Blended | 0.60* (0.37-0.97) |
| Cohabiting | 0.57 (0.27-1.18) |
| Extended | 0.85 (0.67-1.07) |
| Other | 0.20 (0.02-1.79) |
| Nuclear (ref) | 1.00 |
|
| |
| Race/ethnicity | |
| Hispanic | 0.84 (0.68-1.05) |
| Non-Hispanic black, single race | 0.78 (0.56-1.10) |
| Non-Hispanic other, single race or multiple race | 0.90 (0.69-1.16) |
| Non-Hispanic white, single race (ref) | 1.00 |
|
| |
| Parental education (of resident parent with more education) | |
| Less than high school diploma | 0.67 (0.44-1.03) |
| High school diploma or GED | 0.91 (0.70-1.20) |
| Some college | 0.97 (0.78-1.21) |
| College degree (BA or BS) (ref) | 1.00 |
|
| |
| Region | |
| South | 0.84 (0.67-1.07) |
| Midwest | 0.96 (0.75-1.21) |
| West | 0.80 (0.61-1.04) |
| Northeast (ref) | 1.00 |
|
| |
| Residence | |
| Central city | 1.06 (0.90-1.26) |
| Nonmetro | 1.12 (0.89-1.41) |
| Suburbs (ref) | 1.00 |
|
| |
| Child received special education | |
| Yes | 1.03 (0.73-1.46) |
| No (ref) | 1.00 |
|
| |
| Child’s family received WIC benefits | |
| Yes | 1.08 (0.88-1.34) |
| No (ref) | 1.00 |
|
| |
| Health insurance coverage | |
| Public | 1.21 (1.00-1.49) |
| Uninsured | 1.26 (0.96-1.67) |
| Private (ref) | 1.00 |
|
| |
| Poverty status (in previous year) | |
| Under (< 1.00 times) the federal poverty threshold | 0.96 (0.68-1.34) |
| 1.00 to < 2.00 times the federal poverty threshold | 1.07 (0.80-1.42) |
| 2.00 to < 4.00 times the federal poverty threshold | 0.84 (0.66-1.07) |
| 4.00 and over times the federal poverty threshold (ref) | 1.00 |
|
| |
| Child had well-child check-up past 12 months | |
| Yes | 1.05 (0.82-1.35) |
| No (ref) | 1.00 |
|
| |
| Still had asthma | |
| Yes | 1.06 (0.82-1.37) |
| No (ref) | 1.00 |
|
| |
|
Doctor/health professional said SC had one or more selected
chronic conditions |
|
| 2 or more conditions | 0.67 (0.32-1.47) |
| 1 condition | 1.04 (0.77-1.39) |
| No conditions (ref) | 1.00 |
|
| |
| Had a seasonal flu vaccine before Oct., 2009 in the past year | |
| Yes | 1.34* (1.11-1.62) |
| No (ref) | 1.00 |
|
| |
| Number of observations in analysis | 972 |
|
| |
| −2
*
Normalized Log likelihood for full model (degrees of freedom) |
1257.10 (30) |
*
Percent is significantly different from reference category (ref) at 0.05 level