Bivariate and Multivariate Analyses of Characteristics Significantly Associated With Routine Offering of Rotavirus Vaccine to Eligible Infants Among Family Medicine Physicians (N = 260)
| Factors | Risk Ratio (95% Confidence Interval)b | |
|---|---|---|
| Unadjusted | Adjusted | |
| Physician and practice characteristics | ||
| Male (n = 137) | 1.02 (0.77–1.33) | |
| Year of graduation | 0.99 (0.97–1.01) | |
| Region of practice | ||
| Midwest (n = 86) | Reference | |
| Northeast (n = 46) | 0.72 (0.47–1.11) | |
| South (n = 60) | 0.85 (0.59–1.21) | |
| West (n = 68) | 0.83 (0.59–1.18) | |
| Location of practice | ||
| Rural (n = 81) | 0.92 (0.66–1.28) | |
| Suburban (n = 115) | Reference | |
| Urban, inner city (n = 64) | 1.13 (0.82–1.55) | |
| Practice type | ||
| Private (n = 207) | Reference | |
| Health maintenance organization/hospital/clinic (n = 53) | 1.36 (1.02–1.81) | |
| No. of providers in practicea | ||
| 1–3 (n = 85) | Reference | |
| 4–6 (n = 78) | 0.95 (0.63–1.44) | |
| 7–9 (n = 36) | 1.22 (0.77–1.93) | |
| ≥10 (n = 59) | 1.91 (1.37–2.64) | |
| Participation in VFC program | ||
| Yes (n = 168) | Reference | |
| No (n = 67) | 0.50 (0.32–0.77) | |
| Do not know (n = 23) | 1.10 (0.75–1.63) | |
| Proportion of patients with private insurance | ||
| <25% (n = 45) | 1.12 (0.72–1.73) | |
| 25%–49% (n = 53) | 1.45 (1.00–2.10) | |
| 50%–74% (n = 82) | Reference | |
| ≥75% (n = 67) | 1.18 (0.81–1.74) | |
| Proportion of patients insured by Medicaid/SCHIP | ||
| <10% (n = 87) | Reference | |
| 10%–24% (n = 74) | 1.38 (0.94–2.03) | |
| 25%–49% (n = 51) | 1.71 (1.17–2.50) | |
| ≥50% (n = 34) | 1.50 (0.96–2.35) | |
| Proportion of uninsured patients | ||
| <10% (n = 175) | Reference | |
| ≥10% (n = 72) | 0.85 (0.61–1.19) | |
| Proportion of Hispanic patients | ||
| <10% (n = 150) | 0.88 (0.67–1.16) | |
| ≥10% (n = 95) | Reference | |
| Proportion of black patients | ||
| <10% (n = 167) | 1.03 (0.76–1.39) | |
| ≥10% (n = 77) | Reference | |
| Level of confidence in prelicensure surveillance to monitor vaccine safety | ||
| Great/moderate deal of confidence (n = 162) | 2.38 (1.60–3.53) | 1.66 (1.10–2.50) |
| Little/no confidence (n = 87) | Reference | Reference |
| Level of confidence in postlicensure surveillance to monitor vaccine safety | ||
| Great deal of/moderate confidence (n = 211) | 2.05 (1.14–3.67) | |
| Little/no confidence (n = 37) | Reference | |
| Barriers to administering new vaccine (definitely/somewhat a barrier) | ||
| Cost/availability | 0.82 (0.72–0.94) | |
| Difficulty obtaining adequate vaccine supplies (n = 35) | 0.65 (0.39–1.08) | |
| Lack of adequate reimbursement for vaccination (n = 86) | 0.42 (0.29–0.63) | |
| Up-front costs for physicians' practice to purchase vaccine (n = 94) | 0.48 (0.34–0.69) | |
| Failure of some insurance companies to cover rotavirus vaccination (n = 111) | 0.50 (0.36–0.69) | |
| Unwarranted burden | 0.83 (0.72–0.96) | |
| Physicians' belief that rotavirus is not severe disease that requires vaccination (n = 85) | 0.34 (0.22–0.54) | |
| Time it takes physician to discuss rotavirus vaccine safety with parents (n = 63) | 0.39 (0.23–0.64) | |
| General administrative burden of rotavirus vaccine (n = 69) | 0.34 (0.20–0.56) | |
| Physicians' concern about adding another vaccine to already overloaded vaccine schedule (n = 125) | 0.47 (0.34–0.63) | |
| Complexity of recommendations for timing of rotavirus vaccine doses (n = 100) | 0.59 (0.42–0.81) | |
| Safety/parental concerns | 0.79 (0.71–0.88) | |
| Physicians' concerns about safety of rotavirus vaccine (n = 126) | 0.28 (0.20–0.41) | |
| Parents' reluctance to have child vaccinated because of withdrawal of previous rotavirus vaccine (n = 108) | 0.38 (0.26–0.54) | |
| Parents' concerns about vaccine safety in general (n = 130) | 0.59 (0.44–0.78) | |
| Parents not thinking that rotavirus vaccine is necessary (n = 126) | 0.50 (0.37–0.68) | |