Research Article
Adverse Health Effects and Unhealthy Behaviors among Medical Students Using Facebook
Table 6
Association between adverse health effects and facebook surfing hours.
| Health effects | (%) | Mean rank | Sum of ranks | value |
| Back pain | | | | | Yes | 226 (75.3) | 158.13 | 35737.00 | 0.006 | No | 74 (24.7) | 127.20 | 9413.00 | Shoulder/neck pain | | | | | Yes | 224 (74.7) | 160.27 | 35901.00 | 0.001 | No | 76 (25.3) | 121.70 | 9249.00 | Wrist pain | | | | | Yes | 197 (65.7) | 157.09 | 30946.50 | 0.060 | No | 103 (34.3) | 137.90 | 14203.50 | Headache | | | | | Yes | 207 (69.0) | 158.95 | 32903.00 | 0.009 | No | 93 (31.0) | 131.69 | 12247.00 | Eye irritation | | | | | Yes | 220 (73.3) | 158.25 | 34814.50 | 0.008 | No | 80 (26.7) | 129.19 | 10335.50 |
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