Table 1.
18-30 Months | 42–57 Months | 69 Months | 115 Months | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
N | % [95% CI] | N | % [95% CI] | N | % [95% CI] | N | % [95% CI] | |||||
At least 1 sleep problem | 21292 | 72.7 | [72.1–73.3] | 19477 | 79.7 | [79.1–80.2] | 8639 | 79.5 | [78.6–80.3] | 7790 | 75.1 | [74.1–76.1] |
Refuse going to bed | 21242 | 35.9 | [35.3–36.6] | 19438 | 41.9 | [41.2–42.5] | 8621 | 37.8 | [36.8–38.8] | 7733 | 36.2 | [35.2–37.3] |
Woken up early | 21223 | 52.2 | [51.6–52.9] | 19430 | 52.8 | [52.1–53.5] | 8580 | 45.7 | [44.6–46.7] | 7768 | 33.7 | [32.6–34.8] |
Difficulty going to sleep | 21155 | 35.4 | [34.7–36.0] | 19413 | 38.7 | [38.0–39.3] | 8591 | 46.1 | [45.1–47.2] | 7741 | 52.5 | [51.4–53.6] |
Nightmares | 21194 | 17.8 | [17.3–18.4] | 19330 | 35.5 | [34.9–36.2] | 8516 | 42.2 | [41.2–43.3] | 7626 | 29.1 | [28.1–30.1] |
Continusously wakes up | 21173 | 33.4 | [32.8–34.1] | 19397 | 35.7 | [35.0–36.4] | 8570 | 32.3 | [31.3–33.3] | 7727 | 22.2 | [21.3–23.2] |
Waken up after few hours | 21190 | 21.9 | [21.4–22.5] | 19385 | 14.8 | [14.3–15.3] | 8576 | 11.1 | [10.5–11.8] | 7722 | 6.5 | [6.0–7.1] |
Sleep quantity (mean hours) | 20716 | 12.4 | [12.4–12.4] | 19129 | 11.5 | [11.5–11.5] | 8422 | 11.3 | [11.3–11.3] | 7801 | 10.4 | [10.3–10.4] |