Table 2

Data on Shelby County Demographics and Pharmacy Access Factors Aggregated by ZIP Code Area

VariableMean ± S.D.
Demographics in 33 Evaluated Residential ZIP Code Areas
 Population total29,139.9 ± 12,300.7
 Median age (yr)34.9 ± 5.03
 % Female residents51.8 ± 3.46
 % White residents34.7 ± 30.2
 Median household income ($)45,540.12 ± 22,014.33
 % Residents with income below federal poverty limit24.2 ± 16.1
 % Graduated high school83.8 ± 10.2
 % Graduated college27.0 ± 18.9
 % Residents employed55.5 ± 10.8
 % Residents uninsured16.9 ± 7.0
 Local crime risk scores20
  Personal crime risk375.5 ± 149.1
  Property crime risk292.8 ± 124.3
  Total crime risk (U.S. average = 100)305.9 ± 122.6
Data on Pharmacy Access Factors, as Reported by 90 Surveyed Pharmaciesa
 Pharmacy density (no. community pharmacies per 10,000 residents)b1.49 ± 1.04
 Price for 30-day supply of commonly used medications ($)c
  Levothyroxine13.85 ± 3.79
  Methylphenidate extended-release120.89 ± 54.05
  Hydrocodone–acetaminophen27.93 ± 3.08
 Services offered (%)
  Generic drug program85.4 ± 28.2
  Home medication delivery27.1 ± 32.4
  Influenza immunization94.1 ± 20.3
  Other immunizations92.6 ± 21.0
  Medication therapy management92.4 ± 20.6
 Weekly hours of operation
  Monday–Friday63.5 ± 11.4
  Saturday8.8 ± 3.4
  Sunday6.7 ± 3.8
  • a n = 89 for data on hydrocodone–acetaminophen and levothyroxine pricing; n = 88 for data on methylphenidate pricing.

  • b As calculated by investigators.

  • c Prices are out-of-pocket (i.e., cash purchase) prices.