Table 2

HRs of incident stroke by socioeconomic status in women and men: the Anhui cohort study

SES variableAnhui cohort
WomenMen
Number of strokes/participantsPYAR (incidence)*HR
95% CI†
Number of strokes/participantsPYAR (incidence)*HR
95% CI†
Urban rurality
 Urban49/7705415.2
(9.05)
1.0051/7084794.8
(10.64)
1.00
 Rural51/7074490.4
(11.36)
3.64
1.17 to 11.32
60/6673937.3
(15.24)
2.23
0.81 to 6.19
Educational level‡
 High19/4213050.3
(6.23)
1.0045/6324307.8
(10.45)
1.00
 Middle10/1831253.7
(7.98)
1.59
0.66 to 3.85
16/1781116.1
(14.34)
1.07
0.52 to 2.20
 Low71/8735601.6
(12.67)
3.68
1.70 to 7.97
50/5653308.1
(15.11)
0.93
0.44 to 1.98
Occupational class‡
 High29/4703333.9
(8.70)
1.0043/6324341.0
(9.91)
1.00
 Middle22/2992074.2
(10.61)
0.73
0.36 to 1.47
14/129788.1
(17.76)
1.53
0.77 to 3.06
 Low49/7084497.5
(10.89)
0.43
0.16 to 1.18
54/6143603.0
(14.99)
1.20
0.49 to 2.94
Satisfactory income‡
 High13/1551066.5
(12.19)
1.0012/139960.4
(12.49)
1.00
 Middle41/6824742.0
(8.65)
0.62
0.32 to 1.20
48/7054637.4
(10.35)
0.74
0.38 to 1.44
 Low46/6404097.1
(11.23)
0.62
0.30 to 1.28
51/5313134.3
(16.27)
0.83
0.40 to 1.73
Financial problem in the past 2 years
 No54/8035618.0
(9.61)
1.0052/7444964.8
(10.47)
1.00
 Yes46/6744287.5
(10.73)
0.68
0.31 to 1.49
59/6313767.3
(15.66)
1.74
0.77 to 3.92
  • *PYAR (incidence): person-year at risk (incidence rate); incidence rate per 1000 person-years.

  • †Models are adjusted for: age (continuous), sex, body mass index (BMI), smoking, alcohol consumption, marital status, frequency of visiting children or other relatives, hypertension, heart disease, diabetes, activity of daily living, depression and dementia, and urban rurality, education, occupation, satisfactory income (or financial problem).

  • ‡Classification of low, middle and high levels in SES variables: education was classified as follows: (1) low: illiterate, (2) middle: primary school, and (3) high: secondary school or higher; occupational class was classified as follows: (1) low: peasant, (2) middle: manual labourer or housewife, and (3) high: official/teacher or business/other; satisfactory income was classified as follows: (1) low: poor or average, (2) middle: satisfactory, and (3) high: very satisfactory.

  • SES, socioeconomic status.