====== Acne ======

[[start|Lifelines]] participants were asked the following questions regarding [[https://en.wikipedia.org/wiki/Acne|acne]] ([[sections|section]]: [[Diseases & symptoms]]). Note that more detailed questions about acne were asked to a small subcohort in an [[additional assessments|additional questionnaire]], [[ACNQ]]. Additionally, a couple of acne questions were asked in [[additional assessments|additional questionnaire]] [[SKIQ]].

===== Variables =====
=== General variables ===

| **Label English**                                                                   | **Label Dutch**                                                                             | **Code**                 | **Variable**  | **Assessment**                      | **Age**  |
| severe acne / could you indicate which of the following disorders you have (had)?   | ernstige acne / kunt u aankruisen welke van de volgende aandoeningen u hebt of hebt gehad?  | acne_presence_adu_q_1    | health72h1    | [[1A Questionnaire 1|1A]]           | 18+      |
| Do you have serious acne complaints?                                                | Hebt u ernstige acne klachten?                                                              | acne_presence_adu_q_2    | derm001       | [[3A Questionnaire 1|3A]]           | 18+      |
| since what year do you have serious acne complaints? (make an estimation)           | sinds welk jaartal heeft u ernstige acne klachten? (maak een schatting)                     | acne_startyear_adu_q_1   | derm001a      | [[3A Questionnaire 1|3A]] [[SKIQ]]  | 18+      |
| At what location(s) so you have serious acne complaints?                            | Gezicht / Op welke locatie(s) hebt u ernstige acne klachten?                                | acne_location_adu_q_1_a  | derm002       | [[3A Questionnaire 1|3A]]           | 18+      |
| Hairy part of the scalp / At what location(s) so you have serious acne complaints?  | Behaarde hoofdhuid / Op welke locatie(s) hebt u ernstige acne klachten?                     | acne_location_adu_q_1_b  | derm002       | [[3A Questionnaire 1|3A]]           | 18+      |
| Back / At what location(s) so you have serious acne complaints?                     | Rug / Op welke locatie(s) hebt u ernstige acne klachten?                                    | acne_location_adu_q_1_c  | derm002       | [[3A Questionnaire 1|3A]]           | 18+      |
| Chest / At what location(s) so you have serious acne complaints?                    | Borst / Op welke locatie(s) hebt u ernstige acne klachten?                                  | acne_location_adu_q_1_d  | derm002       | [[3A Questionnaire 1|3A]]           | 18+      |
| Other location(s): / At what location(s) so you have serious acne complaints?       | Anders, nl: / Op welke locatie(s) hebt u ernstige acne klachten?                            | acne_location_adu_q_1_e  | derm002       | [[3A Questionnaire 1|3A]]           | 18+      |

=== Additional variables in SKIQ ===

| **Label English**                                                 | **Label Dutch**                                                    | **Code**                  | **Variable**    | **Assessment**  | **Age**  |
| face / where is the severe acne located?                          | gezicht / waar hebt u ernstige acne klachten?                      | acne_location_adu_q_2_a   | derm19b_omca46  | [[SKIQ]]        | 18+      |
| neck / where is the severe acne located?                          | nek / waar hebt u ernstige acne klachten?                          | acne_location_adu_q_2_b   | derm19b_oz3n8y  | [[SKIQ]]        | 18+      |
| back / where is the severe acne located?                          | rug / waar hebt u ernstige acne klachten?                          | acne_location_adu_q_2_c   | derm19b_otmqap  | [[SKIQ]]        | 18+      |
| chest / where is the severe acne located?                         | borst / waar hebt u ernstige acne klachten?                        | acne_location_adu_q_2_d   | derm19b_o8kzjp  | [[SKIQ]]        | 18+      |
| other location: / where is the severe acne located?               | anders, nl. / waar hebt u ernstige acne klachten?                  | acne_location_adu_q_2_e   | derm19b_okzs4r  | [[SKIQ]]        | 18+      |
| specification other location / where is the severe acne located?  | specificatie andere locatie / waar hebt u ernstige acne klachten?  | acne_location_adu_q_2_e1  | derm19btxt      |                 |          |
| do you have severe acne symptoms?                                 | hebt u ernstige acne klachten?                                     | acne_presence_adu_q_3     | derm19          | [[SKIQ]]        | 18+      |