Table 5. Mental health issues reported by online college students vs. non-online college students .
| Online CollegeStudents (n = 961) | Non-Online College Students (NCHA II Spring 2015 data set; n = 91829) | Z-Statistic | P Value | |
| In the last 2 weeks | ||||
| Overwhelmed by all I have to do | 35.8% | 51% | -9.12* | <0.0001 |
| Felt very lonely | 13.5% | 25% | -7.98* | <0.0001 |
| Felt very sad | 17.0% | 26.5% | -6.53* | <0.0001 |
| Felt so depressed it was difficult to function | 8.3% | 11.9% | -3.37* | <0.0001 |
| Felt overwhelming anxiety | 19.5% | 23.6% | -2.91* | <0.0001 |
| Have been diagnosed with depression | 29.3% | 19.1% | 7.85* | <0.0001 |
| Levels of stress over last 12 months | ||||
| More than average | 37.5% | 42.5% | -3.25* | <0.0001 |
| Tremendous | 14.4% | 10.7% | 3.52* | <0.0001 |
| Slept to feel rested in last week | ||||
| 0 days | 12.5% | 10.7% | 1.75 | 0.08 |
| 1-2 days | 27.6% | 29.9% | -1.44 | 0.15 |
| 3-5 days | 42.9% | 47.5% | -2.77* | 0.01 |
| 6-7 days | 16% | 11.7% | 4.64* | <0.0001 |
| Felt sleepy in the daytime during the last week | ||||
| No problem | 18.3% | 9.9% | 8.42* | <0.0001 |
| A little problem | 50.6% | 48.5% | ||
| More than a little problem | 18.4% | 24.9% | -6.39* | <0.0001 |
| A big problem | 9.1% | 11.9% | ||
| A very big problem | 3.6% | 4.7% |
*Significant differences between online students and NCHA sample (P < 0.0001).