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Table 2 Assessment of the association between the cardio-metabolic and socio-demographic risk factors and dependency in the IADL using simple and multiple logistic regressions

From: Cardio-metabolic and socio-demographic risk factors associated with dependency in basic and instrumental activities of daily living among older Iranian adults: Bushehr elderly health program

Risk Factor Dependent No. (%) Crude ORa (95%CI) P valueb Adjusted ORa (95%CI)c P valued
Age (years) 60–64 267 (48.5) 1 1
65–69 453 (52.3) 1.2 (0.9–1.4) 0.16 1.1 (0.8–1.3) 0.70
70–74 196 (57.5) 1.4 (1.1–1.9) 0.009 1.3 (1.0–1.7) 0.10
75–79 172 (70.2) 2.51 (1.8–3.5) < 0.001 1.9 (1.3–2.7) < 0.001
80–84 100 (80.7) 4.43 (2.8–7.1) < 0.001 3.5 (2.1–5.8) < 0.001
≥ 85 47 (90.4) 10.0 (3.9–25.5) < 0.001 6.6 (2.5–17.3) < 0.001
Sex Female 817 (69.0) 1 1
Male 418 (42.1) 0.3 (0.3–0.4) < 0.001 0.4 (0.4–0.5) < 0.001
Education No education 533 (75.1) 1 1
Primary School 465 (58. 6) 0.5 (0.4–0.6) < 0.001 0.6 (0.5–0.8) < 0.001
Guidance school 81 (40.9) 0.23 (0.2–0.3) < 0.001 0.4 (0.3–0.5) < 0.001
High school 103 (34.3) 0.17 (0.1–0.2) < 0.001 0.3 (0.2–0.4) < 0.001
Academic 53 (29.9) 0.1 (0.1–0.2) < 0.001 0.3 (0.2–0. 5) < 0.001
Diabetes mellitus No 770 (53.4) 1 1
Yes 462 (63.0) 1.49 (1.2–1. 8) < 0.001 1.4 (1.2–1.7) < 0.001
Hypertension No 294 (50.6) 1
Yes 941 (58.9) 1.4 (1.2–1.7) 0.001
High total cholesterol No 825 (56.1) 1
Yes 409 (57.8) 1.1 (0. 9–1.3) 0.47
Low HDL cholesterol No 577 (52.2) 1
Yes 657 (61.2) 1.4 (1.2–1.7) < 0.001
High LDL cholesterol No 643 (57.0) 1
Yes 591 (56. 5) 1.0 (0.8–1.2) 0.83
High serum triglyceride No 841 (56. 6) 1
Yes 393 (56.9) 1.0 (0.8–1.2) 0.89
Smoking Never 525 (53.9) 1 1
Past 476 (63.2) 1.5 (1.2–1. 8) < 0.001 1.3 (1.0–1.6) 0.047
Current 234 (51.8) 0.9 (0.7–1.2) 0.45 0.8 (0.6–1.1) 0.14
BMI < 18.5 24 (57.1) 1
18.5–24.9 352 (56.2) 1.0 (0.5–1.8) 0.91
25–29.9 496 (53.1) 0.9 (0.5–1.6) 0.61
≥30 363 (62.9) 1.3 (0.7–2.4) 0.5
High Waist Circumference No 417 (56.3) 1
Yes 818 (56.9) 1.0 (0.9–1.2) 0.8
Physical Activity No 993 (60.2) 1 1
Yes 242 (45.8) 0.6 (0.5–0.7) < 0.001 0.7 (0.5–0.8) < 0.001
Daily intake of calories 1534.0 (582.4)e .9996 (.9995–.9998) < 0.001
  1. a: Prevalence Odds Ratio: They indicate what is the chance of having dependency in the IADL in each group compared to the reference group (first group) of each risk factor?
  2. b: In the bivariate analysis
  3. c: Adjusted OR (95%CI) have been displayed only for the risk factors that remained in the final multiple logistic model, after fitting the model by the backward method. The risk factors “age”, “sex”, “education”, “diabetes mellitus”, “hypertension”, “low HDL cholesterol”, “smoking”, “physical activity” and “daily intake of calories” entered into the first multiple logistic model and after fitting the model by the backward method, the covariates “age”, “sex”, “education”, “diabetes mellitus”, “smoking” and “physical activity” remained in the final model
  4. d: In the multiple logistic regression
  5. e: Mean (Standard Deviation)