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Table 3 Contributions of each covariate in sex difference in incident stroke among hypertensive populations (single variable analysis)

From: Sex difference in the incidence of stroke and its corresponding influence factors: results from a follow-up 8.4 years of rural China hypertensive prospective cohort study

Cox proportional hazard modelsHR of sex (95% CI)Percentage of sex difference accounted
All stroke
 Base model: sex (women/men)0.55 (0.46–0.66) 
 Base model+Age0.58 (0.49–0.70)6.67%
 Base model+SBP0.50 (0.42–0.59)−11.11%
 Base model+BMI0.57 (0.47–0.68)4.44%
 Base model+Baseline LDL-C0.54 (0.45–0.64)−2.22%
 Base model+Smoking0.58 (0.48–0.71)6.67%
 Base model+Drinking0.50 (0.41–0.62)− 11.11%
 Base model+Antihypertensive drugs0.51 (0.43–0.61)−8.89%
 Base model+Education degree0.50 (0.42–0.60)−11.11%
 Base model+Physical activity0.54 (0.45–0.64)−2.22%
Ischemic stroke
 Base model: sex (women/men)0.48 (0.38–0.61) 
 Base model+Age0.51 (0.41–0.64)5.77%
 Base model+SBP0.44 (0.35–0.55)−7.69%
 Base model+BMI0.49 (0.39–0.61)1.92%
 Base model+Baseline LDL-C0.46 (0.37–0.58)−3.85%
 Base model+Smoking0.56 (0.43–0.72)15.38%
 Base model+Drinking0.45 (0.34–0.58)−5.77%
 Base model+Antihypertensive drugs0.44 (0.35–0.56)−7.69%
 Base model+Education degree0.44 (0.35–0.56)−7.69%
 Base model+Physical activity0.47 (0.37–0.59)−1.92%
Hemorrhagic stroke
 Base model: sex (women/men)0.64 (0.48–0.86) 
 Base model+Age0.67 (0.50–0.89)8.33%
 Base model+SBP0.56 (0.42–0.75)−22.22%
 Base model+BMI0.67 (0.50–0.89)8.33%
 Base model+Baseline LDL-C0.64 (0.48–0.86)0.00%
 Base model+Smoking0.57 (0.41–0.78)−19.44%
 Base model+Drinking0.56 (0.40–0.79)−22.22%
 Base model+Antihypertensive drugs0.58 (0.43–0.78)−16.67%
 Base model+Education degree0.56 (0.42–0.75)−22.22%
 Base model+Physical activity0.62 (0.47–0.83)−5.56%
  1. LDL-C: Low-density lipoprotein cholesterol. BMI: Body mass index. SBP: Systolic blood pressure. HR: Hazards ratios. CI: Confidence intervals
  2. Education degree: Illiteracy and primary school, Junior high school and High school and above
  3. Physical activity: Low, Moderate and High