Table 2

Vaccinations Administered According to Time, by Patient Characteristics and Pharmacy Use

Time of Vaccination
MeasureTraditional Clinic Hours, % (n=3,976,029)Off-Clinic Hours, % (n=1,811,941)Total Cohort No. (%)(N=5,787,970)
Age categorya
 <18 years48.951.1b191,594 (3.3)
 18–49 years59.041.0b1,504,681 (26.0)
 50–64 years64.835.2b1,452,577 (25.1)
 ≥65 years77.822.22,639,118 (45.6)
 Male67.532.5b2,468,472 (42.7)
 Female69.630.43,319,498 (57.4)
Population density of patient addressc
 Metropolitan67.832.3b4,863,492 (84.0)
 Micropolitan73.226.8583,455 (10.1)
 Small town74.225.8207,270 (3.6)
 Rural74.725.4133,753 (2.3)
Chronic conditionsd
 068.131.9b3,435,597 (59.4)
 ≥169.530.52,352,373 (40.6)
Insurance status
 Insured70.329.74,605,207 (79.6)
 Uninsured62.437.6b1,182,763 (20.4)
State-level pharmacist privilegee
 All CDC recommended68.032.0b3,973,699 (68.7)
 Selected CDC recommended70.329.71,814,271 (31.4)
Vaccine typef
 CDC recommended68.731.35,756,905 (99.5)
 Travel/other59.740.3b31,065 (0.5)
Number of vaccines during year
 168.931.15,435,657 (93.9)
 ≥266.133.9b352,313 (6.1)
Pharmacy use
 Vaccination only68.731.35,031,745 (86.9)
 Vaccination and prescription(s)68.531.5b756,225 (13.1)
Total68.731.35,787,970 (100.0)
  • CDC = Centers for Disease Control and Prevention.

  • a Calculated from patient’s age on date of vaccination. Mean age was 60.8 years in the traditional clinic hours group and 53.1 years in the off-clinic hours group.

  • b Percentage is greater than the total off-clinic hours average of 31.3%.

  • c Determined from patient zip code and Rural Urban Commuting Area (RUCA) codes.18

  • d Determined from Medical Condition Codes ascertained from patient prescriptions for chronic medications.

  • e Authorized per protocol or with patient-specific prescription for CDC-recommended vaccines.

  • f CDC-recommended vaccinations: influenza; herpes zoster (shingles); pneumonia; tetanus, diphtheria, and acellular pertussis (Tdap); hepatitis A and/or B (hepatitis); human papillomavirus (HPV); meningitis; measles, mumps, and rubella (MMR); varicella zoster (chicken pox); and polio. Travel/other vaccines: typhoid, yellow fever, rabies, and Japanese encephalitis.

  • Source: Walgreens pharmacy claims data, August 2011 through July 2012.