Table 1

Descriptive statistics for predictor variables by APOE genotype

*E4-/*E4-

*E4+/*E4-

*E4+/*E4+

(n = 1473)

(n = 510)

(n = 38)


n

Freq (%)

Freq (%)

Freq (%)

p


Age

60–62

1045

749 (71.7%)

282 (27.0%)

14 (1.3%)

0.040

63–64

976

724 (74.2%)

228 (23.4%)

24 (2.5%)

Gender

Male

1049

764 (72.8%)

267 (25.5%)

18 (1.7%)

0.837

Female

972

709 (72.9%)

243 (25.0%)

20 (2.1%)

Education

0–12 years

632

452 (71.5%)

167 (26.4%)

13 (2.1%)

0.907

13 years

426

313 (73.5%)

107 (25.1%)

6 (1.4%)

14–15 years

207

156 (75.4%)

48 (23.2%)

3 (1.4%)

16+ years

756

552 (73.0%)

188 (24.9%)

16 (2.1%)

Head injury

Yes

193

142 (73.6%)

47 (24.4%)

4 (2.1%)

0.941

No

1828

1331 (72.8%)

463 (25.3%)

34 (1.9%)

Problem drinking

Yes

468

349 (74.6%)

110 (23.5%)

9 (1.9%)

0.617

No

1553

1124 (72.4%)

400 (25.8%)

29 (1.9%)

Premorbid intelligence

Low

625

458 (73.3%)

159 (25.4%)

8 (1.3%)

0.599

(STW)

Medium

718

514 (71.6%)

190 (26.5%)

14 (1.9%)

High

654

481 (73.5%)

158 (24.2%)

15 (2.3%)

Stroke or hypertension

Yes

1118

813 (72.7%)

285 (25.5%)

20 (1.8%)

0.911

No

903

660 (73.1%)

225 (24.9%)

18 (2.0%)

Stroke history

Yes

80

59 (73.8%)

19 (23.8%)

2 (2.5%)

0.882

No

1941

1414 (72.8%)

491 (25.3%)

36 (1.9%)

Current hypertension

Yes

1212

882 (72.7%)

309 (25.5%)

21 (1.7%)

0.804

No

809

591 (73.1%)

201 (24.8%)

17 (2.1%)


Christensen et al. BMC Geriatrics 2008 8:14   doi:10.1186/1471-2318-8-14

Open Data