Table 3

Prevalence of stroke (% and n/N) and its association with Family Average Income (FAI), Education and Occupation in Nanjing, China


Prevalence (n and %)
Adj. odds ratio (95% CI)



Stroke
Non-stroke
Model 1*
Model 2 §
Model 3#

Overall
453 (1.5)
28887 (98.5)



FAI (Tertile)





     Lower
63 (0.7)
9626 (99.3)
1
1
1
     Middle
107 (1.2)
8884 (98.8)
1.84(1.35, 2.52)
1.59(1.13, 2.23)
1.43(1.01, 2.02)
     Higher
283 (2.7)
10377 (97.3)
4.17 (3.17, 5.48)
2.32(1.69, 3.19)
1.94(1.40, 2.70)
Education (yrs)





     0–9
269 (1.4)
19568 (98.6)
1
1
1
     10–12
70 (1.3)
5411 (98.7)
0.94 (0.72, 1.23)
1.18(0.89, 1.55)
1.08(0.82, 1.44)
     13+
114 (2.8)
3908 (97.2)
2.12 (1.70, 2.65)
1.36(1.07, 1.72)
1.18(0.92, 1.51)
Occupation†





     Blue collar
93 (0.6)
15772 (99.4)
1
1
1
     Service
34 (0.9)
3625 (99.1)
1.59 (1.07, 2.36)
0.89(0.60, 1.34)
0.80(0.53, 1.21)
     White collar
326 (3.3)
9490 (96.7)
5.83 (4.62, 7.35)
1.98(1.52, 2.57)
1.64(1.25, 2.15)

n = number of participants with stroke within sub-group; N = total number of participants within sub-group. The lower FAI was the reference category.

* Model 1: Only FAI, education or occupation was entered logistic regression model as the single predictor, the odds ratios were un-adjusted.

© Model 2: Odds ratios adjusted for age, gender, area of residence.

# Model 3: Odds ratios adjusted for age, gender, area of residence, BMI, smoking status, alcohol drinking, diabetes, high blood pressure, occupational and leisure-time physical activity.

†Blue collar = farmer, factory worker, forestry worker, fisher; Service people = salespeople, house worker; White collar = office worker, teacher, doctor.

Xu et al. BMC Public Health 2008 8:170   doi:10.1186/1471-2458-8-170