Table 5 Interaction between computer exposure variables and mobile phone use at baseline, and sleep disturbances (new cases) at 1-year follow-up
MEN | WOMEN | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mobile phone use | Mobile phone use | |||||||||||
Low | Medium | High | Low | Medium | High | |||||||
Computer exposure | Cases (%) | PR (95% CI) | Cases (%) | PR (95% CI) | Cases (%) | PR (95% CI) | Cases (%) | PR (95% CI) | Cases (%) | PR (95% CI) | Cases (%) | PR (95% CI) |
Computer use | ||||||||||||
High | 38 (16) | 2.2 (1.03–4.55) | 17 (19) | 2.9 (1.32–6.34) | 14 (22) | 3.4 (1.55–7.63) | 47 (21) | 1.2 (0.84–1.66) | 18 (19) | 1.1 (0.69–1.76) | 36 (34) | 1.8 (1.28–2.51) |
Medium | 32 (14) | 2.1 (1.00–4.32) | 16 (21) | 3.2 (1.47–7.16) | 17 (24) | 3.9 (1.81–8.44) | 57 (17) | 1.0 (0.70–1.34) | 19 (15) | 0.8 (0.52–1.33) | 17 (15) | 0.8 (0.50–1.29) |
Low | 8 (6) | 1.0 (ref) | 8 (10) | 1.7 (0.69–4.38) | 9 (15) | 2.4 (1.00–5.90) | 68 (19) | 1.0 (ref) | 36 (25) | 1.3 (0.94–1.92) | 24 (23) | 1.1 (0.75–1.72) |
Email/chat use | ||||||||||||
High | 11 (23) | 1.8 (0.96–3.31) | 9 (32) | 2.9 (1.66–5.24) | 7 (32) | 2.9 (1.47–5.59) | 14 (29) | 1.7 (1.06–2.68) | 7 (28) | 1.7 (0.88–3.08) | 31 (31) | 1.7 (1.08–2.68) |
Medium | 18 (16) | 1.4 (0.82–2.25) | 9 (20) | 1.8 (0.96–3.46) | 4 (10) | … | 30 (19) | 1.1 (0.78–1.61) | 19 (24) | 1.4 (0.92–2.12) | 23 (26) | 1.5 (0.99–2.13) |
Low | 49 (11) | 1.0 (ref) | 23 (14) | 1.3 (0.82–2.08) | 29 (22) | 2.2 (1.41–3.34) | 126 (18) | 1.0 (ref) | 47 (18) | 1.0 (0.75–1.37) | 39 (21) | 1.1 (0.78–1.47) |