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Table 1 Characteristics of study population and unique index infection visits over the three year study period

From: Evaluating the impact of a novel restricted reimbursement policy for quinolone antibiotics: A time series analysis

Overall Study Population (n = 170,247)

 

Median age (IQR) at beginning of OSA program

74 (69, 80)

Female (n,%)

97,568 (57.3%)

Death within 30 days post index visit for the overall population (n,%)

1,270 (0.8%)

Any antibiotic prescription within 30 days post index visit for the overall population (n,%)

86,436 (50.8%)

Unique Index Visits for Infections of Interest (n = 397,534)

 

AECB

119,215 (30.0%)

Proportion prescribed any antibiotic within 30 days 35%

 

URTI

185,946 (46.8%)

Proportion prescribed any antibiotic within 30 days 62%

 

Pneumonia

37,869 (9.5%)

Proportion prescribed any antibiotic within 30 days 48%

 

UTI

54,504 (13.7%)

Proportion prescribed any antibiotic within 30 days 71%

 

Patients with a Unique Index Visit 1 (n = 397,534)

 

Antibiotic Use Within 30 days Following Unique Index Visit 1

 

No antibiotic use

200,794 (50.5%)

Antibiotics other than macrolides and quinolones

77,586 (39.4%)

Macrolides

61,331 (31.2%)

Quinolones

57,823 (29.4%)

Levofloxacin

32,631 (56.4%)

Ciprofloxacin

22,411 (38.8%)

Moxifloxacin 2

2,578 (4.5%)

Gatifloxacin 2

151 (0.3%)

Ofloxacin 2

52 (0.1%)

  1. 1A unique index visit could result in antibiotics being dispensed on separate days during the 30 follow-up period, and as such, numbers do not add up to 397,534.
  2. 2only available on formulary as of Nov 15, 2005.