Table 1.
Description of Medication Nonadherence, Patient‐ and Neighborhood‐Level Enabling/Impeding Factors, Predisposing Factors, and Need (Risk) Factors for 49,176 Commercially Insured Individuals on Statin Therapy during 2009–2011 in Texas State
Variable | Adherent | Nonadherent | p‐value |
---|---|---|---|
Enabling/impeding factors | |||
OOP cost for statin medications | $21.8 (18.3) | $23.7 (18.8) | <.001 |
Count of pharmacies per square mile in ZCTA | 0.42 (2.1) | 0.38 (1.28) | .01 |
Predisposing factors | |||
Gender, male=yes | 27.1% | 29.3% | .002 |
Age, in years | 52.4 (7.9) | 49.9 (8.7) | <.001 |
Rural: Proportion of individuals living in rural ZCTAs | 15.9% | 15.8% | .796 |
Proportion living in ZCTAs, where percentage of households getting public assistance | 2.42% (2.28) | 2.87% (2.72) | <.001 |
Proportion living in ZCTAs, where percentage of population with less than high school education | 18.0% (12.3) | 20.5% (13.8) | <.001 |
Proportion living in ZCTAs, where percentage of population with college or higher education | 27.4% (16.9) | 24.7% (16.2) | <.001 |
Proportion living in ZCTAs, where percentage of English‐only speaking population | 19.5% (11.7) | 20.9% (12.1) | <.001 |
Racial/ethnic density | |||
Proportion living in Non‐Hispanic white dominated ZCTAs | 83.7% | 75.6% | <.001 |
Proportion living in Hispanic dominated ZCTAs | 14.2% | 21.2% | <.001 |
Proportion living in African American dominated ZCTAs | 2.03% | 3.20% | <.001 |
Proportion of foreign‐born population living in ZCTAs | 11.1% (8.8) | 12.5% (9.8) | <.001 |
Average travel‐to‐work time in ZCTAs, in minutes | 25.3 (5.8) | 25.4 (5.7) | .162 |
Need/risk factors | |||
Comorbid conditions | |||
Proportion of individuals with diabetes | 11.8% | 14.4% | <.001 |
Proportion of individuals with mental disorders | 31.6% | 32.8% | <.001 |
Proportion of individuals with cardiovascular disorders | 10.3% | 12.1% | <.001 |
Proportion of individuals who visited cardiologist 30 days before starting statin therapy | 15.8% | 12.1% | <.001 |
Prior health care utilization: total medical spending 6 months before starting statin therapy | <.001 | ||
Low utilizers | 28.9% | 36.2% | – |
Intermediate utilizers | 34.8% | 37.2% | – |
High utilizers | 36.2% | 37.3% | – |