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Table 4 Attrition analysis comparing non-participants to the study population, differences in distributions analysed with the chi-squared test

From: Falls in the general elderly population: a 3- and 6- year prospective study of risk factors using data from the longitudinal population study ‘Good ageing in Skane’

  Non-participants Study population  
n = 772 n = 1763
  n % n % p
Sex
Men 347 44.9 805 45.7 0.762
Women 425 55.1 958 54.3 0.762
Age, decade
60 314 40.7 979 55.5 <0.001
70 147 19.0 350 19.9 0.664
80 222 28.8 379 21.5 <0.001
90 89 11.5 55 3.1 <0.001
Risk factors
Medical and psychological
Heart disease 204/766 26.6 387/1759 22.0 0.012
Heart failure with symptoms 97/740 13.1 91/1712 5.3 <0.001
Stroke 98/771 12.7 135/1758 7.7 <0.001
Chronic obstructive pulmonary disease 39/769 5.1 36/1762 2.0 <0.001
Diabetes. type 1 11/766 1.4 11/1757 0.6 0.044
Osteoporosis-related fracture 119/765 15.6 174/1756 9.9 <0.001
Hip fracture 27/760 3.6 31/1742 1.8 0.007
Osteoarthritis of hip and/or knee 152/772 19.7 316/1763 17.9 0.292
Dementia 52/733 7.1 37/1701 2.2 <0.001
Epilepsy 13/769 1.7 14/1755 0.8 0.045
Parkinson’s disease 11/764 1.4 6/1757 0.3 0.002
Anaemia 90/719 12.5 100/1703 5.9 <0.001
Depression 135/758 17.8 301/1728 17.4 0.813
Psychosis and other mental illness 18/768 2.3 41/1750 2.3 0.999
Cognitive impairment 127/695 18.3 139/1715 8.1 <0.001
Sleeping disorders 317/772 41.1 660/1760 37.5 0.090
Medication use
Sedative and hypnotic drugs 158/630 25.1 249/1283 19.4 0.004
Neuroleptic drugs 17/630 2.7 16/1283 1.2 0.022
Anticholinergic drugs 34/630 5.4 45/1283 3.5 0.051
Antihypertensive drugs 85/630 13.5 150/1283 11.7 0.259
Diuretic drugs 286/630 45.4 394/1283 30.7 <0.001
Use of fall risk drugs 393/772 50.9 635/1763 36.0 <0.001
Use of other drugs 237/772 30.7 648/1763 36.8 0.003
Sensory and neuromuscular
Vertigo 276/772 35.8 572/1763 32.4 0.104
Current pain 418/760 55.0 965/1742 55.4 0.855
Urine incontinence 149/690 21.6 267/1720 15.5 <0.001
Nocturia 74/690 10.7 103/1720 6.0 <0.001
Balance and mobility
Tendency to fall 121/771 15.7 174/1762 9.9 <0.001
Pain during movement 441/764 57.7 1037/1763 58.8 0.607
Impaired mobility 153/700 21.9 154/1730 8.9 <0.001
Low walking speed 372/617 60.3 728/1669 43.6 <0.001
Low physical activity 238/717 33.2 293/1739 16.8 <0.001
Environmental and sociodemographic
Living alone 347/772 44.9 695/1763 39.4 0.009
Residential home 28/727 3.9 19/1744 1.1 <0.001
Outdoor adaptation 496/648 76.5 1204/1578 76.3 0.902
Indoor adaptation 275/772 35.6 483/1763 27.4 <0.001
Functional ability
Dependence in iADL 93/686 13.6 169/1714 9.9 0.009
Dependence in pADL 222/686 32.4 390/1714 22.8 <0.001