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====== Groningen Frailty Indicator (GFI) ======

[[https://en.wikipedia.org/wiki/Frailty_syndrome|Frailty]] is an indicator of risk of poor health outcomes (e.g. mortality, institutionalization, hospitalization, and functional decline) in elderly people ([[sections|section: elderly]]).
  
The Groningen Frailty Indicator is a self-assessment instrument designed to measure frailty in the elderly from a multidimensional perspective. The GFI was validated in the population of elderly [[cohort|participants]] in Lifelines((Peters, L.L. et al. (2015). Construct validity of the Groningen Frailty Indicator established in a large sample of home-dwelling elderly persons: Evidence of stability across age and gender. Exp. Gerontol. 69, 129–141)).

The GFI was filled in by ~10,000 elderly participants in [[1A Questionnaire 1]] and by ~12,000 elderly participants in follow-up questionnaire [[1B]]. A modified [[Wellbeing (Covid-19)|GFI]] was implemented in the [[COVQ|COVID-19 additional questionnaires]]

The following GFI-variables were collected in the context of various general questionnaires:

| **Questions English**                                                                                                                                                                                              | **Questions Dutch**                                                                                                                                                    | **Code**                 | **Variable**  | **Assessment**                                                             | **Age**  |
| shopping / are you able to carry out the following tasks single-handedly and without any help (except perhaps a walking stick, walking frame, or wheelchair)                                                       | de boodschappen doen / kunt u zonder enige hulp van iemand anders zelfstandig, eventueel met behulp van stok, rollator of rolstoel:                                    | gfi_tasks_adu_q_01_a     | GFI1A         | [[1A Questionnaire 1|1A]] [[1B]] [[3B]]  [[4A Questionnaire Elderly| 4A]]  | 65+      |
| dressing and undressing / are you able to carry out the following tasks single-handedly and without any help (except perhaps a walking stick, walking frame, or wheelchair)                                        | zichzelf aan en uitkleden / kunt u zonder enige hulp van iemand anders zelfstandig, eventueel met behulp van stok, rollator of rolstoel:                               | gfi_tasks_adu_q_01_b     | GFI1B         | [[1A Questionnaire 1|1A]] [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]   | 65+      |
| walking around outside (around the house or to the neighbors) / are you able to carry out the following tasks single-handedly and without any help (except perhaps a walking stick, walking frame, or wheelchair)  | zich buitenshuis verplaatsen (rondom huis, naar buren) / kunt u zonder enige hulp van iemand anders zelfstandig, eventueel met behulp van stok, rollator of rolstoel:  | gfi_tasks_adu_q_01_c     | GFI1C         | [[1A Questionnaire 1|1A]] [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]   | 65+      |
| going to the toilet / are you able to carry out the following tasks single-handedly and without any help (except perhaps a walking stick, walking frame, or wheelchair)                                            | naar het toilet gaan / kunt u zonder enige hulp van iemand anders zelfstandig, eventueel met behulp van stok, rollator of rolstoel:                                    | gfi_tasks_adu_q_01_d     | GFI1D         | [[1A Questionnaire 1|1A]] [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]   | 65+      |
| what mark do you give yourself for physical fitness? (scale 0 to 10)                                                                                                                                               | welk rapportcijfer geeft u zichzelf voor hoe fit u zich voelt? (van 0 tot 10)                                                                                          | gfi_fitness_adu_q_02     | GFI2          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| do you experience problems in daily life because of poor vision?                                                                                                                                                   | heeft u problemen in het dagelijks leven door slecht zien?                                                                                                             | gfi_vision_adu_q_03      | GFI3          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| do you experience problems in daily life because of being hard of hearing?                                                                                                                                         | heeft u problemen in het dagelijks leven door slecht horen?                                                                                                            | gfi_hearing_adu_q_04     | GFI4          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| have you recently lost a lot of weight unwillingly? (6 kg in 6 months or 3 kg in one month)                                                                                                                        | bent u in de afgelopen periode veel afgevallen zonder dit te willen (6 kg in 6 maanden of 3 kg in één maand)                                                           | gfi_weightloss_adu_q_05  | GFI5          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| do you take 4 or more different types of medicine?                                                                                                                                                                 | gebruikt u momenteel 4 of meer verschillende soorten medicijnen?                                                                                                       | gfi_medication_adu_q_06  | GFI6          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| do you have any complaints about your memory?                                                                                                                                                                      | hebt u klachten over uw geheugen?                                                                                                                                      | gfi_memory_adu_q_07      | GFI7          | [[1A Questionnaire 1|1A]] [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]   | 65+      |
| do you ever experience emptiness around you?                                                                                                                                                                       | ervaart u wel eens een leegte om u heen?                                                                                                                               | gfi_emotions_adu_q_08    | GFI8          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| do you ever miss people around you?                                                                                                                                                                                | mist u wel eens mensen om u heen?                                                                                                                                      | gfi_emotions_adu_q_09    | GFI9          | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| do you ever feel let down?                                                                                                                                                                                         | voelt u zich wel eens in de steek gelaten?                                                                                                                             | gfi_emotions_adu_q_10    | GFI10         | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| have you felt gloomy or depressed recently?                                                                                                                                                                        | heeft u zich de laatste tijd somber of neerslachtig gevoeld?                                                                                                           | gfi_emotions_adu_q_11    | GFI11         | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |
| have you felt nervous or afraid recently?                                                                                                                                                                          | heeft u zich de laatste tijd nerveus of angstig gevoeld?                                                                                                               | gfi_emotions_adu_q_12    | GFI12         | [[1B]] [[3B]] [[4A Questionnaire Elderly| 4A]]                             | 65+      |