Table 2. Characteristics of participants in CLSA Comprehensive sub-cohort baseline by difficulty of falling asleep (males).
| Variable | Difficulty of falling asleep (n = 13,443) | ||||
| Never
(n = 7,233) |
< 1 time/week
(n = 3,322) |
1−2 times/week
(n = 1,342) |
3−5 times/week
(n = 789) |
6−7 times/week
(n = 757) |
|
| CLSA: the Canadian Longitudinal Study on Aging; HDL-C: high-density lipoprotein cholesterol. | |||||
| Average of age, yrs | 59.82 | 59.63 | 57.77 | 57.62 | 58.14 |
| White | 93.89% | 95.55% | 95.57% | 91.09% | 93.02% |
| Education | |||||
| Less than post-secondary | 36.16% | 32.36% | 30.73% | 42.19% | 48.39% |
| Some college degree | 33.86% | 36.91% | 41.58% | 39.17% | 36.25% |
| Bachelor’s or above | 29.98% | 30.72% | 27.69% | 18.64% | 15.36% |
| Marital status | |||||
| Single/Separated/Divorced/Widowed | 16.03% | 17.28% | 19.74% | 27.69% | 31.24% |
| Married | 83.97% | 82.72% | 80.26% | 72.31% | 68.76% |
| Immigrants | 20.50% | 20.77% | 17.53% | 16.05% | 19.77% |
| Average of body mass index, kg/m2 | 28.60 | 28.19 | 28.77 | 28.32 | 28.91 |
| Average of waist circumference | 101.02 | 99.72 | 101.59 | 100.70 | 102.26 |
| Average of systolic blood pressure, mmHg | 122.32 | 121.52 | 122.44 | 121.49 | 122.15 |
| Lipid profile | |||||
| Average of total cholesterol, mmol/L | 4.93 | 5.01 | 4.97 | 5.08 | 4.89 |
| Average of HDL-C, mmol/L | 1.29 | 1.31 | 1.24 | 1.28 | 1.24 |
| Average of non-HDL-C, mmol/L | 3.64 | 3.71 | 3.72 | 3.80 | 3.65 |
| Average of low-density lipoprotein cholesterol, mmol/L | 2.79 | 2.81 | 2.80 | 2.84 | 2.74 |
| Average of triglyceride, mmol/L | 1.91 | 2.03 | 2.12 | 2.13 | 2.05 |
| Average of glycated hemoglobin, mmol/L | 5.70 | 5.69 | 5.74 | 5.70 | 5.77 |
| Smoking | |||||
| Non-smoker | 27.63% | 29.33% | 26.93% | 25.51% | 18.70% |
| Former smoker | 62.85% | 60.38% | 59.92% | 63.29% | 56.84% |
| Current smoker | 9.53% | 10.29% | 13.14% | 11.20% | 24.46% |
| Alcohol intake | |||||
| None | 12.17% | 11.40% | 12.21% | 11.19% | 15.75% |
| Occasionally | 9.44% | 6.26% | 9.41% | 12.18% | 17.74% |
| Regularly (at least once a month) | 78.39% | 82.34% | 78.38% | 76.63% | 66.51% |
| Moderate physical activity > 30 min | 13.96% | 12.64% | 12.53% | 11.02% | 9.48% |
| Average of number of close friends | 5.19 | 5.17 | 4.43 | 4.79 | 5.16 |
| Average of multimorbidity | 2.26 | 2.24 | 2.31 | 2.53 | 3.12 |
| Average of sleep hour | 6.92 | 6.94 | 6.58 | 6.23 | 5.58 |
| Average of CES-D 10 score | 4.29 | 4.81 | 6.13 | 7.91 | 8.43 |