Skip to main content

Table 2 Baseline demographic characteristics of the Longitudinal Research on Aging Drivers (LongROAD) study participants

From: Longitudinal Research on Aging Drivers (LongROAD): study design and methods

Characteristic

Study Site

Total

(n = 2990)

No. (%)

Ann Arbor, MI (n = 601)

Baltimore, MD (n = 588)

Cooperstown, NY (n = 601)

Denver, CO (n = 600)

San Diego, CA (n = 600)

No. (%)

No. (%)

No. (%)

No. (%)

No. (%)

Age, years

 65–69

203 (33.8)

314 (53.4)

232 (38.6)

263 (43.8)

231 (38.5)

1243 (41.6)

 70–74

205 (34.1)

171 (29.1)

225 (37.4)

219 (36.5)

217 (36.2)

1037 (34.7)

 75–79

193 (32.1)

103 (17.5)

144 (24.0)

118 (19.7)

152 (25.3)

710 (23.7)

Sex

 Male

298 (49.6)

278 (47.3)

269 (44.8)

292 (48.7)

267 (44.5)

1404 (47.0)

 Female

303 (50.4)

310 (52.7)

332 (55.2)

308 (51.3)

333 (55.5)

1586 (53.0)

Race/Ethnicity

 White, non-Hispanic

541 (90.0)

403 (68.5)

589 (98.0)

519 (86.5)

519 (86.5)

2571 (86.0)

 Black, non-Hispanic

25 (4.2)

150 (25.5)

2 (0.3)

36 (6.0)

5 (0.8)

218 (7.3)

 Asian

15 (2.5)

9 (1.5)

0 (0)

7 (1.2)

41 (6.8)

72 (2.4)

 Hispanic

8 (1.3)

10 (1.7)

8 (1.3)

29 (4.8)

28 (4.7)

83 (2.8)

 Other

12 (2.0)

16 (2.7)

2 (0.3)

9 (1.5)

7 (1.2)

46 (1.5)

Marital Status

 Married

381 (63.4)

324 (55.1)

405 (67.4)

383 (63.8)

379 (63.2)

1872 (62.6)

 Divorced

103 (17.1)

108 (18.4)

62 (10.3)

86 (14.3)

84 (14.0)

443 (14.8)

 Widowed

76 (12.6)

74 (12.6)

98 (16.3)

66 (11.0)

64 (10.7)

378 (12.6)

 Never married

21 (3.5)

41 (7.0)

15 (2.5)

23 (3.8)

32 (5.3)

132 (4.4)

 Other

19 (3.2)

38 (6.5)

20 (3.3)

28 (4.7)

30 (5.0)

135 (4.5)

 Unknown

1 (0.2)

3 (0.5)

1 (0.2)

14 (2.3)

11 (1.8)

30 (1.0)

Education

 Less than high school

5 (0.8)

15 (2.6)

26 (4.3)

14 (2.3)

2 (0.3)

62 (2.1)

 High school

42 (7.0)

73 (12.4)

107 (17.8)

30 (5.0)

22 (3.7)

274 (9.2)

 Some college /Associate’s degree

145 (24.1)

154 (26.2)

167 (27.8)

129 (21.5)

131 (21.8)

726 (24.3)

 Bachelor’s degree

152 (25.3)

126 (21.4)

121 (20.1)

146 (24.3)

153 (25.5)

698 (23.3)

 Advanced degree

257 (42.8)

219 (37.2)

178 (29.6)

275 (45.8)

292 (48.7)

1221 (40.8)

 Unknown

0 (0)

1 (0.2)

2 (0.3)

6 (1.0)

0 (0)

9 (0.3)

Household Income in the Previous Year

  ≤ $20,000

23 (3.8)

24 (4.1)

46 (7.7)

23 (3.8)

18 (3.0)

134 (4.5)

 $20,000–$49,999

142 (23.6)

131 (22.3)

184 (30.6)

103 (17.2)

81 (13.5)

641 (21.4)

 $50,000–$79,999

149 (24.8)

169 (28.7)

158 (26.3)

143 (23.8)

100 (16.7)

719 (24.0)

 $80,000–$99,999

89 (14.8)

77 (13.1)

78 (13.0)

95 (15.8)

92 (15.3)

431 (14.4)

  ≥ $100,000

177 (29.5)

175 (29.8)

109 (18.1)

217 (36.2)

281 (46.8)

959 (32.1)

 Unknown

21 (3.5)

12 (2.0)

26 (4.3)

19 (3.2)

28 (4.7)

106 (3.5)