Table 2.
Characteristics of adolescents aged 13-17 who did and did not initiate the human papillomavirus (HPV) vaccine series, Montana, National Immunization Survey–Teen (NIS-Teen), 2017a
| Characteristic | Total (N = 326) | Initiated the HPV vaccine series (n = 209) | Did not initiate the HPV vaccine series (n = 117) | P valueb |
|---|---|---|---|---|
| Weighted % (95% CI) of total | — | 65.5 (59.1-71.8) | 34.5 (28.2-40.9) | — |
| Age of adolescent, weighted mean (95% CI), years | 15.0 (14.8-15.2) | 15.1 (14.8-15.3) | 14.8 (14.5-15.1) | .18 |
| Sex | ||||
| Female | 150 (48.8 [42.2-55.5]) | 100 (48.2 [39.9-56.4]) | 50 (50.2 [38.9-61.4]) | .78 |
| Male | 176 (51.2 [44.5-57.8]) | 109 (51.8 [43.6-60.1]) | 67 (49.8 [38.6-61.1]) | |
| Maternal educationc | ||||
| ≥Some post–high school | 163 (55.9 [49.4-62.4]) | 105 (58.3 [50.4-66.3]) | 58 (51.3 [40.1-62.5]) | .31 |
| ≤High school | 163 (44.1 [37.6-50.6]) | 104 (41.7 [33.7-49.6]) | 59 (48.7 [37.5-59.9]) | |
| Type of health insuranced | ||||
| Medicaid | 117 (40.8 [34.1-47.5]) | 74 (42.7 [34.4-51.1]) | 43 (37.1 [26.0-48.2]) | .33 |
| Private health insurance only | 168 (46.6 [40.0-53.2]) | 108 (44.6 [36.4-52.7]) | 60 (50.4 [39.1-61.7]) | |
| Annual family household income, $e | ||||
| ≤75 000 | 184 (64.4 [58.2-70.5]) | 112 (64.0 [56.4-71.6]) | 72 (65.1 [54.6-75.6]) | .87 |
| >75 000 | 134 (35.6 [29.5-41.8]) | 92 (36.0 [28.4-43.6]) | 42 (34.9 [24.4-45.4]) | |
aData source: Centers for Disease Control and Prevention.19 Analyses were limited to adolescents for whom adequate health care provider data on immunization history were available. Analyses accounted for the complex survey design and incorporated NIS-Teen–provided sampling weights. Data for race/ethnicity and whether the child had a checkup in previous 2 years are not shown because of small cell sizes. All values are no. (weighted % [95% CI]) unless otherwise indicated.
bFor the continuous variable of age, P values were determined by linear regression. For categorical variables, the Rao–Scott χ2 test was used to determine P values. P < .05 was considered significant.
c“≥Some post–high school” includes mothers with some post–high school education and college graduates. “≤High school” includes high school graduates and mothers with <12 years of education.
dData for uninsured and other health insurance categories are not shown because of small cell sizes.
eData on annual family household income were missing for 8 people.