====== Visit 1 of General Assessment 1A (Baseline) ======

All [[start|Lifelines]] participants of 8 years and older participating in [[general assessments|general assessment]] [[1A]] ("Baseline") visited a [[location]] of their choice. A trained physician's assistant performed the described measurements, according to the Standard Operating Procedure below.\\
  * NB: For the most part of [[1A]], the [[Pulmonary function test]] and [[Ruff Figural Fluency Test]] were performed in alternate weeks so that participants underwent only one of these two tests. \\
  * NNB: In case of temporary counter indications or technical/logistic problems, tests could be rescheduled for [[1A Visit 2]].\\ 

===== SOP (in brief) for Visit 1 of adult (18+) participants =====
  * Total duration: 70 minutes
  * Retrieve the participant from the waiting room
  * Check [[informed Consent]] and basic personal information
  * Take in [[1A Questionnaire 1]] and check for completeness (also during blood pressure measurement)
  * If participant is 65+ years old: perform [[Mini mental state examination|MMSE]]
    * In case of a low MMSE score or by choice of participant, a [[Proxy]] interview was performed
  * Check if all instruments are ready for use
  * Perform the following measurements __in order__ according to their respective SOP’s:
    - [[Anthropometry]] 
    - [[Blood pressure]] 
    - [[ECG]]
    - [[Pulmonary function test]] or [[Ruff Figural Fluency Test]]  
    - [[MINI neuropsychiatric interview]]
    - [[Skin autofluorescence]] 
  * Possible changes in the order:
    * [[Blood pressure]] and [[ECG]] may be swapped
    * [[Pulmonary function test]] may be done after the [[MINI neuropsychiatric interview|MINI]]
  * Enter the information on the [[medication (ATC)|medication wrappers]] (if any) into the computer system


===== SOP (in brief) for Visit 1 of children (8-17) =====
  * Total duration: 60 min (plus 30-45 minutes for on-site [[1A Youth Questionnaire]])
  * Retrieve the [[children|child]] and its parent(s) from the (child-friendly) waiting room
  * [[Informed Consent]] __must__ have been checked prior to the visit
  * Check basic personal information 
  * Take in [[1A Birth Questionnaire]] and [[1A General Questionnaire]] (if not already sent by mail, lost, or forgotten)
  * Hand out [[1A Behavior Questionnaire]] and [[1A Food Questionnaire]] 
  * Check if all instruments are ready for use
  * Perform the following measurements __in order__ according to their respective SOP’s:
    - [[Anthropometry]] 
    - [[Blood pressure]] 
    - [[ECG]] (13+ years old)
    - [[Pulmonary function test]]   
  * Instruct older children (13+) to fill in the digital [[1A Youth Questionnaire]] on site. 

===== Relation to other elements =====
 
1A Visit 1 was accompanied by [[1A Questionnaire 1]] which was filled in, on average, 21 days prior to visit 1.\\
1A Visit 1 was followed by [[1A Visit 2]] after, on average, 40 days.

1A Visit 1 is procedurally equivalent to [[2A Visit 1]] and [[3A Visit 1]]. The average time between 1A Visit 1 and 2A Visit 1 was 3 years and 11 months.