Table 3.

Relationship Between Health Maintenance Organization (HMO) Status and Health Care Access and Use

CharacteristicCrude Prevalence % (95% CI)Adjusted Prevalence* % (95% CI)
* Multivariate analyses adjusted for race-ethnicity, age, sex, income, marital status, family size, community size, smoking, mental health summary score (MCS 12) and physical health summary score (PCS 12) of the Medical Outcomes Study Short Form 12, insurance type (private; Medicaid), HMO status, and usual source of care.
Has usual source of careP < .0001P < .0001
HMO87.5 (86.7–88.3)88.1 (87.4–88.9)
Not HMO84.7 (83.9–85.5)84.4 (83.6–85.2)
Physician visit in past yearP = .0005P = .001
HMO79.4 (78.4–80.4)79.1 (78.3–79.9)
Not HMO77.1 (76.3–77.9)77.4 (76.8–78.0)
Mental health visit in past yearP = .95P = .92
HMO7.8 (7.3–8.3)7.8 (7.3–8.3)
Not HMO7.8 (7.3–8.3)7.8 (7.3–8.3)
Mammogram in past yearP = .09P = .02
HMO64.8 (62.3–67.3)65.3 (62.8–67.8)
Not HMO62.0 (60.1–63.9)61.6 (59.7–63.5)
Influenza vaccination in past yearP = .24P = .01
HMO37.3 (33.2–41.4)38.5 (35.0–42.0)
Not HMO35.0 (32.8–37.2)34.3 (31.8–36.9)
Smoking cessation adviceP = .50P = .39
HMO47.9 (45.8–50.0)48.0 (45.8–50.2)
Not HMO47.00 (45.0–49.0)46.9 (44.8–49.0)