| Headache < monthly | Headache monthly | Headache weekly or daily | |||
---|---|---|---|---|---|---|
(yes = 97, no = 1428) | (yes = 269, no = 1428) | (yes = 133, no = 1428) | ||||
OR (95% CI) | p-value | OR (95% CI) | p-value | OR (95% CI) | p-value | |
Step 1 | Â | Â | Â | Â | Â | Â |
  Symptoms of anxiety and depression | 1.37 (0.86-2.20) | ns | 1.91 (1.43-2.55) | <0.001 | 3.39 (2.44-4.73) | <0.001 |
Step 2 | Â | Â | Â | Â | Â | Â |
  Symptoms of anxiety and depression | 1.50 (0.91-2.46) | ns | 1.82 (1.34-2.47) | <0.001 | 2.98 (2.08-4.26) | <0.001 |
  Attention difficulties | 0.84 (0.58-1.21) | ns | 1.13 (0.90-1.41) | ns | 1.33 (1.00-1.76) | 0.049 |
Step 3 | Â | Â | Â | Â | Â | Â |
  Symptoms of anxiety and depression | 1.50 (0.91-2.46) | ns | 1.81 (1.33-2.46) | <0.001 | 2.99 (2.08-4.28) | <0.001 |
  Attention difficulties | 0.87 (0.59-1.30) | ns | 1.10 (0.87-1.40) | ns | 1.34 (0.99-1.81) | ns |
  Conduct difficulties | 0.82 (0.42-1.61) | ns | 1.10 (0.72-1.66) | ns | 0.97 (0.58-1.65) | ns |