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. 2014 Dec;26(6):347–356. doi: 10.11919/j.issn.1002-0829.214101

Table 1.

Characteristics of participants

Characteristices patients
n=101
n (%)		 controls
n=89
n (%)		 statistic p-value
Male 63 (62.4) 48 (53.9) χ2=1.39 0.239
Age
    18-25
    26-35
    36-45
    46-55
    56 and over		   6 (5.9)
   32 (31.7)
   34 (33.7)
   22 (21.8)
   7 (6.9)		 11 (12.4)
22 (24.7)
28 (31.5)
14 (15.7)
14 (15.7)
 χ2=7.29 0.122
Education
    no formal education
    primary school
    secondary school
    college
    university		 1 (1.0)
53 (52.5)
13 (12.9)
24 (23.8)
10 (9.9)		 4 (4.5)
39 (43.8)
15 (16.9)
20 (22.5)
11 (12.4)		 χ2=3.74 0.442
Marital status
    single
    married
    divorced		 62 (61.4)
27 (26.7)
12 (11.9)		 16 (18.0)
71 (79.8)
2 (2.2)		 χ2=53.48 <0.001
Unemployed 62 (61.4) 12 (13.5) χ2=45.66 <0.001
Rural resident 73 (72.3) 42 (47.2) χ2=12.46 <0.001
Smokera 55 (54.5) 28 (31.5) χ2=10.17 <0.001
Drinks alcoholb 7 (6.9) 4 (4.5) χ2=0.52 0.473

asmoked tobacco daily in prior month

bwomen who drink one or more standard drinks daily or men who drink two or more standard drinks daily