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Table 3 Univariate analysis of mortality risk on baseline variables in the Elderly Medication Cohort Follow-up Study in Tainan City, Taiwan, 1996-2004.

From: Non-leisure time physical activity is an independent predictor of longevity for a Taiwanese elderly population: an eight-year follow-up study

variables   Deaths/personsa No. of person-year Death rate
(per 1,000 person-year)
HR (95% CI)
Age (y/o) 65-75 86/557 4641 18.5 1
  76-80 96/149 1015 94.6 5.5 (4.1 - 7.4)
  81 129/170 1127 114.5 6.7 (5.1 - 8.9)
Sex Men 179/477 3652 49.0 1
  Women 132/399 3131 42.2 0.9 (0.7 - 1.1)
Educational Under elementary school 67/212 1691 39.6 1
  Junior high school and above 244/664 5092 47.9 1.2 (0.9 - 1.6)
Smoking Never/ex-smokers 234/667 5167 45.3 1
  Current smokers 77/209 1616 47.7 1.0 (0.7 - 1.2)
Drinking habit <3 times/week 293/823 6355 46.1 1
  3 times/week 18/53 428 42.1 0.9 (0.6 - 1.5)
Living alone No 281/802 6365 44.2 1
  Yes 30/74 558 53.8 1.2 (0.8 - 1.8)
ADLs Without difficulty 271/809 6365 42.6 1
  With difficulty 40/67 418 95.7 2.4 (1.7 - 3.3)
LTPA Participants 187/593 4730 39.5 1
  Non-participants 124/283 2053 60.4 1.6 (1.2 - 2.0)
NLTPA Active 213/697 5567 38.3 1
  Inactive 98/179 1216 80.6 2.2 (1.7 - 2.8)
BMI 18.5 BMI 30 220/681 5381 40.9 1
  BMI < 18.5 82/170 1192 68.8 1.7 (1.3 - 2.2)
  BMI > 30 9/25 210 42.9 1.0 (0.5 - 2.0)
Cancer No 305/865 6712 45.4 1
  Yes 6/11 71 84.5 1.9 (0.9 - 4.3)
Hypertension No 204/605 4696 43.4 1
  Yes 107/271 2087 51.3 1.2 (0.9 - 1.5)
Diabetes mellitus No 261/769 6012 43.4 1
  Yes 50/107 771 64.9 1.5 (1.1 - 2.1)
Stroke No 280/822 6401 43.7 1
  Yes 31/54 382 81.2 1.9 (1.3 - 2.8)
Heart disease No 262/754 5840 44.9 1
  Yes 49/122 943 52.0 1.2 (0.9 - 1.6)
Pulmonary disease No 289/816 6315 45.8 1
  Yes 22/60 468 47.0 1.0 (0.7 - 1.6)
Liver disease No 287/826 6409 44.8 1
  Yes 24/50 374 64.2 1.4 (1.0 - 2.2)
Renal disease No 300/849 6571 45.7 1
  Yes 11/27 212 51.9 1.1 (0.6 - 2.1)
Arthritis/osteoporosis No 187/526 4069 46.0 1
  Yes 124/350 2714 45.7 1.0 (0.8 - 1.3)
  1. a number of persons at baseline
  2. HR: hazard ratio, ADLs: Activities of daily living, LTPA: leisure time physical activity, NLTPA: non-leisure time physical activity.