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Association between social integration and sleep behaviors.
| Variables | No persistent sleep issues, mean (SD) | Persistent sleep issues, mean (SD) | t test (df) | P value |
| Time with family | 4.21 (1.27) | 4.31 (1.18) | 0.33 (71) | .54 |
| Time with friend | 2.13 (1.17) | 1.90 (1.08) | –0.81 (71) | .76 |
