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Table 3 Associations between mobile phone variables and mental health outcomes at baseline for men (n = 1455) and women (n = 2701)

From: Mobile phone use and stress, sleep disturbances, and symptoms of depression among young adults - a prospective cohort study

   CURRENT STRESS SLEEP DISTURBANCES SYMPTOMS OF DEPRESSION
One item
SYMPTOMS OF DEPRESSION
Two items
   n Prev % PR 95% CI n Prev % PR 95% CI n Prev % PR 95% CI n Prev % PR 95% CI
Mobile phone use                 
Men High 295 23 1.9 1.42-2.54 294 33 1.7 1.40-2.19 208 37 1.2 0.94-1.46 215 39 1.3 1.02-1.58
  Medium 309 16 1.3 0.98-1.84 309 21 1.1 0.87-1.47 235 39 1.2 1.00-1.48 216 34 1.1 0.90-1.43
  Low 749 13 1.0   746 20 1.0   573 34 1.0   551 31 1.0  
Women High 570 32 1.2 1.07-1.45 566 43 1.4 1.21-1.56 351 51 1.2 1.04-1.35 384 55 1.2 1.06-1.34
  Medium 559 31 1.2 1.06-1.44 554 34 1.1 0.98-1.31 366 45 1.1 0.93-1.22 390 49 1.1 0.98-1.26
  Low 1304 26 1.0   1300 30 1.0   898 42 1.0   916 44 1.0  
Availability demands                 
Men High 360 18 1.5 1.04-2.15 359 27 1.3 0.96-1.64 251 35 1.0 0.76-1.20 267 39 1.3 1.00-1.64
  Medium 634 17 1.5 1.04-2.02 631 21 1.1 0.82-1.36 485 34 0.9 0.74-1.09 468 31 1.1 0.86-1.38
  Low 357 12 1.0   357 21 1.0   280 39 1.0   245 30 1.0  
Women High 586 33 1.3 1.14-1.57 583 41 1.4 1.21-1.61 356 47 1.2 0.99-1.33 413 54 1.3 1.10-1.43
  Medium 1006 28 1.1 0.95-1.29 999 34 1.2 1.03-1.36 667 47 1.2 1.02-1.31 683 49 1.2 1.02-1.31
  Low 841 25 1.0   838 28 1.0   591 41 1.0   594 41 1.0  
Awakened at night                 
Men High 182 24 1.8 1.29-2.51 182 35 1.9 1.44-2.43 117 44 1.3 1.05-1.72 129 49 1.6 1.27-2.03
  Medium 613 16 1.2 0.90-1.58 610 23 1.3 1.04-1.64 465 36 1.1 0.93-1.33 441 32 1.1 0.92-1.37
  Low 560 13 1.0   559 18 1.0   436 33 1.0   413 29 1.0  
Women High 417 36 1.5 1.24-1.75 413 44 1.4 1.24-1.67 234 51 1.1 0.98-1.34 294 61 1.4 1.26-1.65
  Medium 1118 29 1.2 1.04-1.40 1111 33 1.1 0.97-1.26 735 44 1.0 0.90-1.14 786 48 1.2 1.03-1.32
  Low 901 24 1.0   900 30 1.0   646 44 1.0   614 41 1.0  
Accessibility stress                 
Men High 131 39 3.5 2.58-4.64 131 27 1.3 0.98-1.81 71 54 1.8 1.42-2.31 91 64 2.4 1.96-2.94
  Medium 387 18 1.6 1.21-2.14 385 25 1.2 0.99-1.53 287 41 1.3 1.12-1.60 268 37 1.4 1.20-1.67
  Low 835 11 1.0   833 21 1.0   658 31 1.0   623 27 1.0  
Women High 345 49 2.5 2.13-2.94 345 47 1.6 1.39-1.85 199 59 1.4 1.24-1.65 224 64 1.7 1.46-1.90
  Medium 986 31 1.6 1.38-1.87 978 34 1.2 1.03-1.32 610 44 1.1 0.94-1.20 707 52 1.4 1.22-1.54
  Low 1104 20 1.0   1100 29 1.0   807 42 1.0   761 38 1.0  
Overuse                 
Men High 38 32 2.1 1.30-3.50 38 37 1.7 1.10-2.55 23 43 1.3 0.83-2.15 28 54 1.7 1.18-2.41
  Medium 170 17 1.2 0.81-1.67 170 23 1.1 0.79-1.43 117 38 1.1 0.87-1.44 126 42 1.4 1.10-1.72
  Low 1120 15 1.0   1116 22 1.0   856 35 1.0   809 31 1.0  
Women High 165 41 1.6 1.31-1.96 164 41 1.3 1.10-1.61 93 54 1.3 1.04-1.55 114 62 1.4 1.23-1.67
  Medium 526 33 1.3 1.09-1.46 522 38 1.2 1.04-1.35 328 52 1.2 1.06-1.36 355 55 1.2 1.10-1.38
  Low 1716 26 1.0   1709 32 1.0   1179 42 1.0   1204 44 1.0  
  1. Prevalence (prev %) of mental health symptoms in each exposure category is shown. The prevalence ratios (PRs) with 95% confidence intervals (CIs) were adjusted for relationship status, educational level, and occupation. Missing values (non-responses to items) were excluded from the analyses, which means that the n varied in the analyses. Prevalence ratios with a CI not including 1.00 (before round-off) are given in bold.