Table 1.

Analytical Sample Description in Percentages (Unweighted Sample N = 11,448)

VariablesNo.All ParticipantsMalesFemalesP Values
Skipped medication1,34911.8 (11.1–12.6)10.2 (9.2–11.3)13.5 (12.4–14.7)<.001
Took less medication1,41312.2 (11.5–13.0)10.5 (9.5–11.6)13.9 (12.8–15.1)<.001
Delayed filling prescription1,67114.6 (13.8–15.5)12.5 (11.4–13.6)16.8 (15.6–18.1)<.001
Lower-cost medication3,28129.9 (28.8–31.0)28.0 (26.4. 29.6)31.8 (30.2–33.4)<.001
Usual source of care
    Yes10,94095.8 (95.4–96.3)95.5 (94.8–96.1)96.2 (95.6–96.7).135
    No5084.2 (3.7–4.6)4.5 (3.9–5.2)3.8 (3.3–4.4)
Age-y
    18 to 292322.5 (2.1–2.9)2.0 (1.6–2.6)2.9 (2.4–3.6).006
    30 to 441,09810.2 (9.5–10.9)9.9 (8.9–10.9)10.5 (9.5–11.5)
    45 to 644,98847.3 (46.0–48.5)49.3 (47.4–51.1)45.3 (43.5–47.1)
    65 and above5,13040.1 (38.8–41.3)38.8 (37.1–40.6)41.3 (39.6–43.0)
Race/ethnicity
    Non-Hispanic white6,35162.9 (61.6–64.2)64.8 (63.0–66.6)60.9 (59.3–62.6)<.001
    Non-Hispanic black2,26215.1 (14.2–16.1)13.3 (12.2–14.5)17.0 (15.8–18.2)
    Hispanic1,98215.1 (14.1–16.2)15.0 (13.6–16.6)15.1 (14.0–16.3)
    Non-Hispanic other8536.9 (6.3–7.6)6.8 (6.0–7.7)7.0 (6.1–7.9)
Education attainment
    Less than high school1,2409.1 (8.4–9.8)8.1 (7.2–9.1)10.0 (9.1–10.9)<.001
    High school4,86342.3 (41.0–43.5)41.2 (39.4–43.1)43.3 (41.7–44.9)
    Some college and above5,34548.7 (47.3–50.0)50.6 (48.7–52.5)46.7 (45.1–48.3)
Marital status
    Married4,98457.3 (56.1–58.6)67.3 (65.7–68.8)47.3 (45.4–49.2)<.001
    Nonmarried6,46442.7 (41.4–43.9)32.7 (31.2–34.3)52.7 (50.8–54.6)
Health insurance
    Private5,33351.6 (50.2–53.0)53.8 (52.0–55.6)49.4 (47.5–51.3).001
    Public5,14939.9 (38.6–41.2)37.9 (36.3–39.5)41.9 (40.1–4.37)
    No coverage9668.5 (7.9–9.2)8.3 (7.4–9.3)8.7 (7.9–9.6)
Poverty ratio
    Less than 12,48216.4 (15.5–17.3)13.1 (12.0–14.2)19.7 (18.4–21.0)<.001
    1 to 22,86922.8 (21.7–23.9)20.1 (18.8–21.5)25.4 (24.0–27.0)
    Greater than 26,09760.9 (59.5–62.2)66.8 (65.1–68.5)54.9 (53.1–56.7)
Self-reported health
    Good and above6,69960.4 (59.2–61.6)62.4 (60.7–64.2)58.4 (56.8–60.1).001
    Fair and below4,74939.6 (38.4–40.8)37.6 (35.8–39.3)41.6 (39.9–43.2)
Current smoker
    Yes1,80915.2 (14.3–16.1)16.4 (15.1–17.7)14.0 (13.0–15.2).004
    No9,63984.8 (83.9–85.7)83.6 (82.3–84.9)86.0 (84.8–87.0)
Alcohol use
    Heavy & medium1,07810.1 (9.4–10.9)15.5 (14.3–16.8)4.8 (4.1–5.6)<.001
    Light & no use10,37089.9 (89.1–90.6)84.5 (83.2–85.7)95.2 (94.4–95.9)
Functional limitation
    Not limited in any way3,38232.2 (31.1–33.3)38.6 (36.8–40.3)25.8 (24.4–27.2)<.001
    Has a functional limitation8,06667.8 (66.7–68.9)61.4 (59.7–63.2)74.2 (72.8–75.6)
  • All values are in percentages. Values within parenthesis indicate 95% Confidence Intervals.