Table 3 Relative Risks of Stroke According to Serum Adiponectin Levels in the 12 Identified Studies.

From: Association of Adiponectin Polymorphism with Metabolic Syndrome Risk and Adiponectin Level with Stroke Risk: A Meta-Analysis

First author

Year

Comparison

RR (95% CI)

Adjustment for Covariates

Söderberg S36

2004

  

Sex, age, date/type of health survey, region, BMI, smoking, hypertension, cholesterol, and diabetes mellitus

Men

Q4 (≥17.3) vs. Q1 (<8.3)

1.08 (0.56–2.08)

Per 5 μg/ml

1.03 (0.89–1.21)

Women

Q4 (≥27.6) vs. Q1 (<14.5)

0.85 (0.44–1.63)

Per 5 μg/ml

0.97 (0.88–1.07)

Matsumoto M37

2008

Q4 (>12.4; median, 14.35) vs. Q1 (<5.6; median, 4.25)

0.87 (0.49–1.54)

Age, sex, HDL cholesterol, triglyceride, BMI, current smoking, systolic blood pressure, and high-sensitivity CRP.

Per standard-deviation increase in log μg/ml

1.06 (0.86–1.31)

Per 5 μg/ml

0.95 (0.69–1.31)

David J Stott38

2009

   

Per standard-deviation increase (4.89 μg/ml)

0.86 (0.72–1.03)

Per standard-deviation increase (4.89 μg/ml)

0.78 (0.62–0.97) *

Ogorodnikova AD39

2010

Q4 (>18.8; median, 22.65) vs. Q1 (<5.2; median, 2.3)

1.25 (0.88–1.79)

Age, race/ethnicity, BMI groups, type 2 diabetes, smoking, hypertension, LDL-C, HDL-C, METs, CRP, and aspirin use.

Per 5 μg/ml

1.08 (0.99–1.17)

P. Khalili40

2010

Q5 (median, 16.57) vs. Q1 (median, 2.37)

0.98 (0.65–1.47) *

 

Per 5 μg/ml

1.04 (0.95–1.13) *

Rajpathak SN41

2011

Q4 (median, 46) vs. Q1 (median, 14.8)

1.16 (0.82–1.63) *

Age, ethnicity, BMI, current smoking, physical activity, NSAIDs use, hypertension medication use, systolic blood pressure, history of coronary and artery diseases, HDL cholesterol, triglyceride, diabetes, and waist circumference.

Per 5 μg/ml

1.01 (0.97–1.06) *

Prugger C42

2012

  

Systolic blood pressure, antihypertensive treatment, cigarette smoking, alcohol consumption, total cholesterol, high-density lipoprotein cholesterol, waist circumference, diabetes mellitus, and high-sensitivity C-reactive protein.

Per standard-deviation increase

1.53 (1.01–2.34) *

Per 5 μg/ml

1.40 (1.14–1.71) *

Wannamethee SG43

2013

Q4 (>10.839, median, 12.775) vs. Q1 (<4.346, median, 3.037)

0.73 (0.48–1.10)

Age, BMI, diabetes mellitus, angina, atrial fibrillation, smoking, social class, alcohol intake, physical activity, lung function, systolic blood pressure, and use of antihypertensive drugs.

Per 5 μg/ml

0.94 (0.75–1.19)

Gardener H44

2013

Q4 (13.8–53.3, median, 33.55) vs. Q1 (2.1–7.0, median, 4.55)

1.64 (1.01–2.63)

Age, sex, race/ethnicity, smoking, hypertension, diabetes, low density lipoprotein cholesterol, high density lipoprotein cholesterol, triglycerides, waist circumference, moderate alcohol use, moderate-heavy physical activity, previous cardiac disease history, and hs-CRP.

Per 5 μg/ml

1.16 (1.03–1.31)

Bidulescu A45

2013

  

Age, body mass index, systolic blood pressure, blood pressure medication, HDL-cholesterol, triglycerides, C-reactive protein, insulin resistance by HOMA-IR, smoking, and physical activity.

Men

Per standard-deviation increase in log μg/ml

1.18 (0.79–1.74) *

Women

Per standard-deviation increase in log μg/ml

1.41 (1.04–1.91) *

Kizer JR46

2013

Per standard-deviation increase (7.9 μg/ml)

<20 μg/ml, 1.10 (0.89–1.35) *

Age, sex, race, BMI, income, education, centre, smoking status, alcohol use, systolic blood pressure, antihypertensive medication, oestrogen replacement therapy, eGFR, aspirin use, health status, albumin, subclinical CVD, pre/diabetes mellitus, LDL-cholesterol, HDL cholesterol, triglycerides, and hs-CRP.

Per standard-deviation increase (7.9 μg/ml)

≥20 μg/ml, 1.16 (0.97–1.38) *

Per 5 μg/ml

1.07 (0.98–1.16) *

Arregui M11

2014

Q3 (median, 9.4) vs. Q1 (median, 3.5)

1.94 (1.22–3.06) *

Age, waist circumference, smoking status (never smoker, former smoker, current smoker <20 cigarettes per day, current smoker ≥20 cigarettes per day), sports activity (<2 h/week, ≥2 h/week), education (vocational school or less, technical school, university), alcohol consumption (men: 0, >0–12, >12–24, >24; women: 0, >0–6, >6–12, >12 g/day), prevalent hypertension, fasting status (yes/no), prevalent diabetes, HDL-cholesterol, triglycerides, and hs-CRP.

Men

Per 5 μg/ml

1.15 (0.76–1.73) *

Women

Per 5 μg/ml

1.30 (1.02–1.67) *

  1. *Estimates specific to ischemic stroke; Q = quintiles or quartiles.