Table 1

Demographical information of participants

Demographic Variable

Mean (SD)

Total Sample Frequency (%)

Form A Frequency

Form B Frequency

Refused

Age - Years

51(17)

52(17)

49(16)

Sex

501

259

242

Male

176(35%)

90(34%)

86(35%)

Female

325(65%)

169(66%)

156(65%)

Marital Status

493

256

237

8

Single

107(22%)

54(22%)

53(22%)

Married

311(63%)

160(63%)

151(63%)

Widowed

30(6%)

19(7%)

11(6%)

Separated

14(3%)

7(2%)

7(3%)

Divorced

31(6%)

15(6%)

15(6%)

Parity

494

257

237

7

Children

376(76%)

198(76%)

178(76%)

No Children

118(24%)

59(24%)

59(24%)

Education

492

254

238

9

< High School

39(8%)

20(8%)

19(8%)

High School

126(26%)

72(28%)

54(23%)

Some College

49(10%)

26(10%)

23(10%)

College

97(20%)

42(17%)

55(23%)

University

135(27%)

70(28%)

65(27%)

Masters

36(7%)

19(7%)

17(7%)

Phd

10(2%)

5(2%)

5(2%)

Employment

495

257

238

6

Full time

261(53%)

141(55%)

120(53%)

Part time

53(11%)

23(9%)

30(11%)

Not employed

181(37%)

93(36%)

88(37%)

Ethnicity

496

257

239

5

Caucasian

407(82%)

205(80%)

202(85%)

Asian

21(4%)

12(5%)

9(4%)

Hispanic

8(2%)

5(2%)

3(1%)

Canadian African

19(4%)

12(5%)

7(3%)

Canadian

2(>1%)

2(1%)

0(0%)

Caribbean

11(2%)

7(3%)

4(6%)

Aboriginal Other

28(6%)

14(5%)

14(6%)

Residential

497

259

238

4

Urban

303(61%)

158(61%)

145(61%)

Rural

194(39%)

101(39%)

93(39%)

Province

501

261

240

British Columbia

65(13%)

33(13%)

32(13%)

Alberta

52(10%)

26(10%)

26(11%)

Saskatchewan

14(3%)

5(2%)

9(4%)

Manitoba

19(4%)

10(4%)

9(4%)

Ontario

197(40%)

104(40%)

93(39%)

Quebec

117(23%)

63(24%)

54(23%)

Newfoundland

8(1%)

5(2%)

3(1%)

New Brunswick

13(3%)

5(2%)

8(3%)

Nova Scotia

14(3%)

8(3%)

6(2%)

Prince Edward Island

2(<1%)

2(<1%)

0(0%)

Ritvo et al. BMC Public Health 2010 10:125   doi:10.1186/1471-2458-10-125