====== 2A Questionnaire 1 ======

Adult and elderly Lifelines participants participating in the second [[general assessments|general assessment]] [[2A]] received two questionnaires, 2A Questionnaire 1 and [[2A Questionnaire 2]].\\
2A Q1 was followed by [[2A Visit 1]] after, on average, 34 days (SD: ± 43 days).\\
2A Q1 was also followed by [[2A Questionnaire 2]] after, on average, 54 days (SD: ± 49 days).\\
2A Q1 is procedurally equivalent to [[1A Questionnaire 1]] and [[3A Questionnaire 1]].\\ 
The average time between [[1A Questionnaire 1]] and 2A Q1 was 46 months (SD: ± 14 months).\\

Of all participants that filled out 2A Q1 (n = ~100,000), 36% of participants filled in a paper variant whereas 64% filled in a digital variant.

2A Q1 contained the following [[sections]] and subsections:
==== Demographics ====
  * [[Personal data]]
  * [[Education]]
  * [[Family composition]]
  * [[Family deaths]]
  * [[Household composition]]
  * [[Profession]]
  * [[Employment status]]

==== Diseases & symptoms ====
  * [[Cancer]]
  * [[Cardiovascular diseases]]
  * [[Diabetes]]
  * [[Digestive system diseases]]
  * [[Diseases (other)]]
  * [[Fatigue (general)]]
  * [[Kidney/bladder diseases]]
  * [[Mental illnesses]]
  * [[Musculoskeletal conditions]]
  * [[Neurological disorders]]
  * [[Respiratory diseases]]
  * [[Symptoms (SCL-90)]]

==== Elderly ====
  * [[Independence]]

==== Lifestyle & Environment ====  
  * [[Home environment (general)]]
  * [[Physical activity (SQUASH)]]

==== Medical Treatment ====  
  * [[Medication]]
  * [[Surgery]]
  * [[Treatment (general)]]

==== Mental Health ==== 
  * [[Stress (LDI)]]
  * [[Stress (LTE)]]

==== Nutrition ====
//NB: The three FFQ petals (1/2/3) were distributed over three questionnaires ([[1B]], [[1C]] and 2A Q1), so that each participant received the petals in one of six possible orders ([1-2-3], [1-3-2], [2-1-3], [2-3-1], [3-1-2], or [3-2-1]).// 
  * [[FFQ|Petal 1 (FFQ1)]]
  * [[FFQ|Petal 2 (FFQ2)]]
  * [[FFQ|Petal 3 (FFQ3)]]   

==== Physical State ====
  * [[Anthropometry (self-reported)]]

==== Wellbeing & Subjective health ====
  * [[Quality of Life (RAND)]] (only question 1 and 2)