Table 1

Outline of the predictor variables

PredictorsSourceItemsResponse formatPsychometrics
BurnoutGeneral Burnout Scale of the Copenhagen Burnout Inventory, CBI35
  • How often …

  • do you feel tired? are you physically exhausted?

  • are you emotionally exhausted?

  • do you think: ‘I can't take it anymore’?

  • do you feel worn out?

  • do you feel weak and susceptible to illness?

  • Five-point scale:

  • (1) never/almost never

  • (5) (almost) every day

  • Six items' mean score, one missing item allowed.

  • Cronbach's alpha 0.88

  • High ≥3

BurnoutPatients' related burnout CBI36
  • How often …

  • do you find it difficult to work with patients?

  • do you find it frustrating to work with patients?

  • does working with patients drains your energy?

  • do you feel you give more than you receive when working with patients?

  • do you feel tired to work with patients?

  • Do you ask yourself how long you will be able to work with patients?

  • Five-point scale:

  • (1) never/almost never

  • (5) (almost) every day

  • Six items' mean score, one missing item allowed.

  • Cronbach's alpha 0.85

  • High ≥3

Work–family conflictWork–family conflict scale (WFC)37
  • The demands of work interfere with my home and family life.

  • The amount of time my job takes makes it difficult to fulfil family responsibilities.

  • Things I want to do at home do not get done because of the demands of my job.

  • My job produces strain that makes it difficult to fulfil family duties.

  • Due to work-related duties, I have to make changes to my plans for family activities.

  • Five-point scale:

  • (1) total disagreement

  • (5) complete agreement

  • Five items' mean score, one missing item allowed.

  • Cronbach's alpha 0.89

  • Medium 2.5-3.59

  • High ≥3.6

Satisfaction with pay scaleNEXT Study Group
  • How satisfied are you with your pay …

  • – in relation to your need for income?

  • – considering the pay of other comparable professions?

  • – considering the pay of nurses in other institutions?

  • Five-point scale:

  • (1) not at all'(1)

  • (5) very much

  • Three items' mean score, one item allowed.

  • Cronbach's alpha 0.81

  • Medium 2.5–3.49

  • High ≥3.5

Quality of teamworkJob satisfaction scale COPSOQ38 NEXT Study Group
  • Satisfaction with teamwork:

  • How pleased are you with…….?

  • – your work prospects?

  • – your opportunities to give your patients the care they need?

  • – psychological support at your workplace?

  • – the way your abilities are used?

  • – your job as a whole, everything taken into consideration?

  • ‘In your department, are there opportunities to discuss professional matters which you think are important?’

  • Four-point scale:

  • (1) very unsatisfied

  • (5) highly satisfied

  • Five categories:

  • (1) no,

  • (5) in detail

  • Cronbach's alpha

  • including the 6 items 0.77

  • Medium 2.8–3.59

  • High ≥3.6

Interpersonal relations within teamNEXT Study Group
  • How are the relations between the physicians and the following groups?

  • Nursing management; physicians of same position; physicians in a superior position; physicians from other departments; nurses and nursing aids.

  • Five-point scale ranging from (1) hostile and tense

  • to (5) friendly and relaxed

  • Six items' mean score, one missing allowed.

  • Cronbach's alpha 0.70

  • tense <3.5

Influence at workModified Swedish version of the Demand-Control questionnaire,39
  • How often are you personally occupied with the following tasks?

  • – I have a say in what type of task I am asked to fulfil

  • – I can decide for myself how to fulfil the tasks given to me

  • – I can set my own work pace

  • – I have a say in when I fulfil the tasks given to me

  • Extent to which a physician has autonomy in decision making at work

  • Four-point scale:

  • (1) ‘totally inaccurate’

  • (2) ‘totally accurate’

  • Four items' mean score, one missing allowed.

  • Cronbach's alpha 0.84

  • Medium 2.5–3.49

  • High ≥3.5

Quantitative demandCopenhagen Psychosocial Questionnaire COPSOQKristensen et al, 2005First item a):NEXT
  • a) Do you have enough time to talk to patients?

  • b) How often do you lack time to complete all your work tasks?

  • c) Can you pause in your work whenever you want?

  • d) Do you have to work very fast?

  • e) Is your workload unevenly distributed so that things pile up?

  • Five-point scale ranging from (1) hardly ever to (5) always

  • a) and c) reverse

  • Five items' mean score, one missing allowed.

  • Cronbach's alpha 0.70

  • Medium 2.5–3.59

  • High ≥3.6

HealthPart of the Work ability index40
  • A) In general, would you say your health is

  • B) How FALSE or TRUE is each of the following statements for you?

  • I seem to get sick little easier than other people (reverse numbers)

  • I am as healthy as anybody I know.

  • I expect my health to get worse.

  • Five-point scale:

  • (1) poor,

  • (5) excellent

  • Five-point scale:

  • (1) definitely false,

  • (5) definitely true

  • Four items' mean score, one missing allowed.

  • Cronbach's alpha 0.80

  • High≥70

  • Medium 31–69