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Causes of failure to maintain sleep.
| No | Variable | N (%) | ||||
|---|---|---|---|---|---|---|
| Never | Less than once a week | 1 - 2 nights a week | 3 - 4 nights a week | Almost nightly/daily | ||
| 1. | NN | 158 (39.5%) | 90 (22.5%) | 61 (15.2%) | 23 (5.2%) | 68 (17%) |
| 2. | NE | 290 (72.5%) | 67 (16.8%) | 23 (5.8%) | 7 (1.8%) | 13 (3.25) |
