Table 2 Description of the study subjects

Age

 20-27years

106 (18.5)

60 (18.2)

46 (19)

0.092

 28-35 years

154 (26.9)

88 (26.7)

66 (27.3)

 36-43 years

160 (28)

92 (27.9)

68 (28.1)

 44-51 years

124 (21.7)

80 (24.2)

44 (18.2)

 >51 years

28 (4.9)

10 (3)

18 (7.4)

Marital status

 Single

152 (26.6)

86 (26.1)

66 (27.3)

0.942

 Married

410 (71.7)

238 (72.1)

172 (71.1)

 Widower

10 (1.7)

6 (1.8)

4 (1.6)

Educational level

 Diploma

236 (41.3)

104 (31.5)

132 (54.5)

0.000**

 Bachelor

316 (55.2)

216 (65.5)

100 (41.3)

 Master

14 (2.4)

8 (2.4)

6 (2.5)

 PhD

6 (1)

2 (0.6)

4 (1.7)

Monthly net income

 1500-2000NIS

84 (14.7)

36 (10.9)

48 (19.8)

0.005**

 2001-2500NIS

382 (66.8)

236 (71.5)

146 (60.3)

 2501-3000NIS

106 (18.5)

58 (17.6)

48 (19.8)

Residence place

 City

210 (36.7)

124 (37.6)

86 (35.5)

0.018**

 Village

268 (46.9)

164 (49.7)

104 (43)

 Refugee camp

94 (16.4)

42 (12.7)

52 (21.5)

Type of hospital

 Non-Governmental

302 (52.8)

160 (48.5)

142 (58.7)

0.016**

 Governmental

270 (47.2)

170 (51.5)

100 (41.3)

Duration in current occupation

 1-5years

218 (38.1)

126 (38.2)

92 (38)

0.001**

 6-10years

126 (22)

64 (19.4)

62 (25.6)

 11-15years

128 (22.4)

74 (22.4)

54 (22.3)

 >15 years

100 (17.5)

66 (20)

34 (14)

Daily working hours

 <8hours

120 (21)

88 (26.7)

32 (13.2)

0.001**

 8hours

394 (68.9)

222 (67.3)

172 (71.1)

 > 8hours

58 (10.1)

20 (6)

38 (15.7)

Do you live in an industrial area?

 Yes

84 (14.7)

66 (20)

18 (7.4)

0.001**

 No

488 (85.3)

264 (80)

224 (92.6)

Do you share your home with people who smoke?

 Yes

118 (20.6)

72 (21.8)

46 (19)

0.412

 No

454 (79.3)

258 (78.2)

196 (81)

Smoking status

 Current smoker

166 (29)

86 (26.1)

80 (33.1)

0.176

 Ex-smoker

38 (6.6)

24 (7.3)

14 (5.8)

 Non-smoker

368 (64.4)

220 (66.7)

148 (61.2)