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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01339546
Other study ID # 6096A1-4018
Secondary ID B1851041
Status Completed
Phase
First received
Last updated
Start date June 9, 2010
Est. completion date June 30, 2017

Study information

Verified date November 2017
Source Pfizer
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The rationale for this study is to assess the change in ambulatory care visit rates for acute otitis media between the period before (2001-2009) and after the introduction of the 13-valent pneumococcal conjugate vaccine (13vPnC) (2011-2013) among children less than 5 years old in the United States.


Description:

NAMCS-The survey utilizes a three stage sampling design based on (1) probability of selecting a primary sampling unit (PSU) (2) probability of selecting a physician within the PSU and (3) probability of selecting a patient within the physician practice. This last probability is defined to be the exact number of office visits during physician's specified reporting week divided by the number of patient record forms completed. NHAMCS- For producing unbiased national estimate, this survey utilizes four stages (a) Probability of selecting a PSU (b) probability of selecting a hospital with in PSU (c) probability of selecting an emergency department (ED) or outpatient department (OPD) within the hospital (d) probability of selecting a visit within ED or OPD. The overall probability of selection is the product of the probabilities at each stage. The inverse of the overall selection probability is the basic inflation weight.


Recruitment information / eligibility

Status Completed
Enrollment 1
Est. completion date June 30, 2017
Est. primary completion date June 30, 2017
Accepts healthy volunteers No
Gender All
Age group N/A to 5 Years
Eligibility Inclusion Criteria: Five years of age or under at the time of visit, ambulatory visit for otitis media, myringotomy tube insertion, skin rash or trauma during study period Exclusion Criteria: Age over 5 years, no ambulatory visits for the events listed in inclusion criteria

Study Design


Intervention

Other:
no intervention


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Pfizer

Outcome

Type Measure Description Time frame Safety issue
Primary Change in ambulatory care visit rates for acute otitis media between the period before (2001-2009) and after the introduction of the 13vPnC vaccine (2011-2013) among children less than 5 years old 1) 2001-2009 inclusive (9 years) and 2) 2011-2013 inclusive (3 years)
Secondary Change in ambulatory care visit rates for acute otitis media between: 1) 1997-99 to 2001-09; and 2) between 1997-99 to 2011-13 among children less than 5 years old. (Timeframes are retrospective) 1) 1997-99 inclusive (3 yrs); 2) 2001-09 inclusive (9 yrs) and 3) 2011-13 inclusive (3 yrs)
Secondary Change in ambulatory care visit rates for myringotomy tube insertion between: 1) 1997-99 to 2001-09; and 2) between 1997-99 to 2011-13 among children less than 5 years old. (Timeframes are retrospective 1) 1997-99 inclusive (3 yrs); 2) 2001-09 inclusive (9 yrs) and 3) 2011-13 inclusive (3 yrs)
Secondary Change in ambulatory care visit rates for rash between 2001-09 to 2011 -13 among children less than 5 years old. (Timeframes are retrospective) 1) 2001-09 inclusive (9 yrs) and 2) 2011-13 inclusive (3 yrs)
Secondary Change in ambulatory care visit rates for trauma between 2001-09 to 2011-13 among children less than 5 years old. (Timeframes are retrospective) 1) 2001-09 inclusive (9 yrs) and 2) 2011-13 inclusive (3 yrs)
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