Table 1.
Demographics, adverse childhood experiences, personality and fatigue among 741 Norwegian nurses participating in the survey of shift work, sleep and health, wave 14 (2023).
| Variables | Percent/mean (SD) |
|---|---|
| Sex (n = 736) | |
| Women (n = 651) | 88.5% |
| Men (n = 85) | 11.5% |
| Age (n = 740) | 45.7 (7.9) |
| 30–39 (n = 198) | 26.8% |
| 40–49 (n = 338) | 45.7% |
| 50–59 (n = 151) | 20.4% |
| 60–75 (n = 53) | 7.2% |
| Marital status (n = 741) | |
| Not married/partnered (n = 156) | 21.1% |
| Married or partnered (n = 585) | 78.9% |
| Children at home (n = 741) | |
| No (n = 245) | 33.1% |
| Yes (n = 496) | 66.9% |
| Adverse childhood experiences1 | |
| Number of adverse childhood experiences (n = 741) | |
| None (n = 176) | 23.8% |
| One (n = 261) | 35.2% |
| Two (n = 144) | 19.4% |
| Three (n = 71) | 9.6% |
| Four (n = 89) | 12.0% |
| Dysfunctional family environment (n = 741) | |
| Not at all (n = 201) | 27.1% |
| To a very small degree (n = 200) | 27.0% |
| To a small degree (n = 202) | 27.3% |
| To a large degree (n = 100) | 13.5% |
| To a very large degree (n = 38) | 5.1% |
| Trusted adult (n = 741) | |
| To a very large degree (n = 324) | 43.7% |
| To a large degree (n = 264) | 35.6% |
| To a small degree (n = 86) | 11.6% |
| To a very small degree (n = 39) | 5.3% |
| Not at all (n = 28) | 3.8% |
| Struggle with bad memories (n = 741) | |
| Not at all (n = 457) | 61.7% |
| To a very small degree (n = 98) | 13.2% |
| To a small degree (n = 123) | 16.6% |
| To a large degree (n = 41) | 5.5% |
| To a very large degree (n = 22) | 3.0% |
| Perceived childhood (n = 741) | |
| Very good (n = 351) | 47.4% |
| Good (n = 249) | 33.6% |
| Moderate (n = 89) | 12.0% |
| Difficult (n = 42) | 5.7% |
| Very difficult (n = 10) | 1.3% |
| Personality | |
| Big Five traits2 | |
| Extroversion (n = 614) | 12.7 (3.6) |
| Agreeableness (n = 614) | 16.9 (2.6) |
| Conscientiousness (n = 614) | 16.7 (2.6) |
| Neuroticism (n = 614) | 11.2 (3.6) |
| Intellect/Imagination (n = 614) | 13.1 (3.4) |
| Circadian preference3 (n = 741) | |
| MEQr sum score (n = 741) | 15.1 (3.5) |
| Definitely morning types (n = 13) | 1.8% |
| Moderately morning types (n = 176) | 23.8% |
| Intermediate types (n = 434) | 58.6% |
| Moderately evening types (n = 105) | 14.2% |
| Definitely evening types (n = 13) | 1.8% |
| Flexibility4 sum score (n = 670) | 11.9 (4.4) |
| Within 25th percentile (n = 169) | 25.2% |
| >25th – 50th percentile (n = 186) | 27.8% |
| >50th – 75th percentile (n = 178) | 26.6% |
| >75th percentile (n = 137) | 20.4% |
| Languidity4 sum score (n = 672) | 20.0 (3.8) |
| Within 25th percentile (n = 176) | 26.2% |
| >25th – 50th percentile (n = 179) | 26.6% |
| >50th – 75th percentile (n = 202) | 30.1% |
| >75th percentile (n = 115) | 17.1% |
| Workaholism5 (n = 684) | 12.6 (4.8) |
| No (n = 657) | 96.1% |
| Yes (n = 27) | 3.9% |
| Excessive fatigue6 (n = 741) | |
| No (n = 439) | 59.2% |
| Yes (n = 302) | 40.8% |
Adverse childhood experiences measured (2023) using four questions used in the HUNT study, performed in Norway (Haugland et al., 2021).
Big Five personality traits assessed in 2022 using the Mini-International Personality Item Pool, range 4–20.
Horne and Ostberg Morningness-Eveningness Questionnaire-reduced scale measured in 2023. Higher sum scores refer to higher morningness, range 4–25. Categorized into three categories: morning-type (score = 18–25), neither-type (score = 12–17) and evening-type (score = 4–11).
The revised Circadian Type Inventory measured in 2016 with 11-items about daily sleep/work habits and preferences. Higher scores indicate possessing the trait to a higher degree, range 5–25 for flexibility and 6–30 for languidity. Participants were categorized into four sub-groups using quartile scores on the respective scales.
Workaholism was measured in 2017 with the Bergen Work Addiction Scale, a 7-item scale, range 7–35. Workaholism = scoring “often” or “always” on ≥4 items.
Excessive fatigue measured in 2023 with Chalder Fatigue Questionnaire, dichotomized summed score ≥4 considered excessive fatigue.