Table 3. Descriptive Statistics for Strategy Types.
| Night Stay | Nap Proxy | Switch Sleepers | No Sleep | Incomplete Switcher | ||
| Age | 39.1±3.9 | 34.3±1.4 | 35.2±0.9 | 40.5±1.3 | 32.8±2.0 | |
| Years of Shift Experience | 3.2±0.2 | 2.4±0.3 | 2.7±0.1 | 3.3±0.2 | 2.6±0.3 | |
| Number of Children in Home | 0.3±0.7 | 0.6±0.1 | 0.4±0.0 | 0.6±0.1 | 0.2±0.1 | |
| Chronotype | 3.9±0.8 | 3.7±0.3 | 3.3±0.1 | 3.1±1.2 | 4.5±0.2 | |
Notes: Numbers are means ± SEM. Strategy Type significantly predicted self-reported chronotype, such that Incomplete Switchers had the latest chronotypes, while the Sleep Switchers and No Sleep nurses had significantly earlier chronotypes compared to the Incomplete Switchers (Kruskal-Wallis, χ2(4) = 20.9, p<0.01, Tamhane's post hoc comparisons, p<0.01). Strategy Type significantly predicted age with older and more experienced nurses more likely to choose the No Sleep strategy or Night Stay strategies (ANOVA, F(4,286) = 4.5, p<0.01; Tukey's HSD, p<0.05). There was a significant effect of Strategy Type on Years of Experience (ANOVA, F(4,226) = 2.4, p<0.05), such that experienced nurses were more likely to choose the No Sleep strategy than the Nap Proxy, No Sleep, or Incomplete Switcher strategies (p<0.05). Nurses with children at home were less likely to be an Incomplete switcher and more likely to choose the No Sleep strategy (G(4) = 21.0, p<0.05). Nearly a third (29%) of nurses with children in the home chose No Sleep compared to one-fifth of the nurses without children in the home. Only 4% of nurses with children in the home were Incomplete Switchers compared to 18.2% of nurses without children in the home.