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Table 4 Prevalence of stroke (% and n/N) and its association with Family Average Income (FAI) by basic demographic variables in Nanjing, China

From: Impact of socio-economic factors on stroke prevalence among urban and rural residents in Mainland China

Variables

FAI Category

Stroke (% and n)

Non-stroke (% and n)

Unjusted Odds ratio (95%CI)

Adjusted Odds ratio† (95%CI)

Age (yrs)

     

   35–49

     
 

Lower

8 (0.19)

4119 (99.81)

1

1

 

Middle

6 (0.12)

4874 (99.88)

0.94(0.39, 2.31)

0.33(0.11, 1.00)

 

Higher

2 (0.05)

4203 (99.95)

0.94(0.39, 2.31)

0.08(0.02, 0.49)

   50–64

     
 

Lower

22 (0.70)

3120 (99.30)

1

1

 

Middle

37 (1.37)

2659 (98.63)

2.37(1.24, 4.50)

0.91(0.51, 1.63)

 

Higher

80 (1.94)

4035 (98.06)

3.50(1.81, 6.78)

0.99(0.56, 1.75)

   65+

     
 

Lower

33 (1.36)

2387 (98.64)

1

1

 

Middle

64 (4.52)

1351 (95.48)

3.51(1.79, 6.89)

1.96(1.23, 3.13)

 

Higher

210 (8.59)

2139 (91.41)

5.21(2.63, 10.32)

3.21(2.06, 4.99)

Gender

     

   Women

     
 

Lower

25 (0.49)

5038 (99.51)

1

1

 

Middle

43 (0.97)

4393 (99.03)

2.43(1.23, 4.79)

1.28(0.81, 2.02)

 

Higher

118 (2.25)

5125 (97.75)

3.73(1.88, 7.40)

1.51(0.98, 2.33)

   Men

     
 

Lower

38 (0.82)

4588 (99.18)

1

1

 

Middle

64 (1.41)

4491 (98.59)

2.36(1.40, 3.97)

1.59(0.92, 2.72)

 

Higher

165 (3. 50)

5252 (96.50)

3.85(2.26, 6.58)

2.64(1.58, 4.40)

Area

     

   Rural

     
 

Lower

28 (0.43)

6441 (99.57)

1

1

 

Middle

8 (0.30)

2616 (99.70)

1.38(0.54, 3.48)

0.93(0.41, 2.12)

 

Higher

1 (0.26)

387 (99.74)

1.23(0.16, 9.58)

0.59(0.08, 4.54)

   Urban

     
 

Lower

35 (1.09)

3185 (98.91)

1

1

 

Middle

99 (1.55)

6268 (98.45)

2.92(1.77, 4.82)

1.58(1.06, 2.34)

 

Higher

282 (2.74)

9992 (97.26)

4.64(2.82, 7.64)

2.63(1.95, 3.55)

Education (yrs)

     

   0–9

     
 

Lower

59 (0.65)

8959 (99.35)

1

1

 

Middle

90 (1.31)

6782 (98.69)

2.02(1.45, 2.80)

1.46(1.01, 2.10)

 

Higher

120 (3.04)

3827 (96.96)

4.76 (3.48, 6.52)

2.01(1.39, 2.90)

   10–12

     
 

Lower

4 (0.62)

637 (99.38)

1

1

 

Middle

15 (0.85)

1755 (99.15)

1.36(0.45, 4.12)

0.63(0.19, 2.07)

 

Higher

51 (1.66)

3019 (98.34)

2.69 (0.97, 7.47)

0.65(0.21, 2.01)

   13+

     
 

Lower

0 (0.00)

30 (100.0)

1

1

 

Middle

2 (0.57)

347 (99.43)

N/A

N/A

 

Higher

112 (3.07)

3531 (96.93)

N/A

N/A

Occupation*

     

   Blue collar

     
 

Lower

37 (0.49)

7548 (99.51)

1

1

 

Middle

36 (0.65)

5502 (99.35)

1.34(0.84, 2.12)

1.33(0.80, 2.21)

 

Higher

20 (0.73)

2720 (99.27)

1.50 (0.87, 2.59)

1.11(0.59, 2.07)

   Service people

     
 

Lower

13 (0.77)

1668 (99.23)

1

1

 

Middle

10 (0.75)

1316 (99.25)

0.98(0.43, 2.23)

1.43(0.58, 3.51)

 

Higher

11 (1.69)

641 (98.31)

2.20(0.98, 4.94)

3.49(1.32, 9.24)

   White collar

     
 

Lower

13 (3.07)

410 (96.93)

1

1

 

Middle

61 (2.87)

2066 (97.13)

0.93(0.51, 1.71)

0.91(0.49, 1.70)

 

Higher

252 (3.47)

7014 (96.53)

1.13(0.64, 2.00)

1.18(0.66, 2.13)

  1. n = number of participants with stroke within sub-group; N = total number of participants within sub-group.
  2. †Odds ratios adjusted for age, gender, area of residence, BMI category, smoking status, alcohol drinking, diabetes, high blood pressure, occupational and leisure-time physical activity.
  3. N/A = not applicable.
  4. *Blue collar = farmer, factory worker, forestry worker, fisher; Service people = salespeople, house worker; White collar = office worker, teacher, doctor and retired people.
  5. Lower FAI = the reference category.