Table 1.
Summary data of the MIDUS participants (overall and by wave)
| Overall | MIDUS 2 | MIDUS Refresher |
Percent missingA |
|
|---|---|---|---|---|
| N | 2118 | 1255 | 863 | 0.0 |
| Age [m (sd)] | 53.02 (12.56) | 54.52 (11.72) | 50.84 (13.41) | 0.0 |
| Race [n (%)] | 0.9 | |||
| Black | 393 (18.6) | 228 (18.2) | 165 (19.1) | |
| OtherB | 129 (6.1) | 38 (3.0) | 91 (10.5) | |
| White | 1596 (75.4) | 989 (78.8) | 607 (70.3) | |
| Sex [n (%)] | 0.0 | |||
| Female | 1163 (54.9) | 713 (56.8) | 450 (52.1) | |
| Male | 955 (45.1) | 542 (43.2) | 413 (47.9) | |
| Employment Status [n (%)] | 7.5 | |||
| Employed | 1470 (69.4) | 870 (69.3) | 600 (69.5) | |
| Retired | 423 (20.0) | 263 (21.0) | 160 (18.5) | |
| Not employed | 225 (10.6) | 122 (9.7) | 103 (11.9) | |
| Educational Attainment [n (%)] | 0.2 | |||
| High school or less | 499 (23.6) | 350 (27.9) | 149 (17.3) | |
| Some college | 456 (21.5) | 284 (22.6) | 172 (19.9) | |
| College or more | 1163 (54.9) | 621 (49.5) | 542 (62.8) | |
| Income [n (%)] | 1.7 | |||
| ≤ $25,000 | 428 (20.2) | 268 (21.4) | 160 (18.5) | |
| $25,001 - ≤ $40,000 | 254 (12.0) | 160 (12.7) | 94 (10.9) | |
| $40,001 - ≤ $55,000 | 233 (11.0) | 156 (12.4) | 77 (8.9) | |
| $55,001 - ≤ $70,000 | 253 (11.9) | 160 (12.7) | 93 (10.8) | |
| > $70,000 | 950 (44.9) | 511 (40.7) | 439 (50.9) | |
| Smoking status [n (%)] | 0.0 | |||
| Never | 616 (29.1) | 327 (26.1) | 289 (33.5) | |
| Sometimes | 589 (27.8) | 357 (28.4) | 232 (26.9) | |
| Prior | 645 (30.5) | 398 (31.7) | 247 (28.6) | |
| Current | 268 (12.7) | 173 (13.8) | 95 (11.0) | |
| Alcohol consumption [n (%)] | 0.0 | |||
| Never | 109 (5.1%) | 63 (5.0) | 46(5.3) | |
| Sometimes | 619 (29.2) | 408 (32.5) | 211 (24.4) | |
| Current | 1390 (65.6) | 784 (62.5) | 606 (70.2) | |
| Everyday discrimination [m (sd)] | 0.89 (0.88) | 0.45 (0.54) | 1.52 (0.90) | 0.7 |
| Lifetime discrimination [n (%)] | 4.7 | |||
| None | 1123 (53.0) | 668 (53.2) | 455 (52.7) | |
| 1 to 2 | 601 (28.4) | 352 (28.0) | 249 (28.9) | |
| 3 or more | 394 (18.6) | 235 (18.7) | 159 (18.4) | |
| Burden of discrimination [n (%)] | 11.5 | |||
| None | 849 (40.1) | 782 (62.3) | 67 (7.8) | |
| A little | 220 (10.4) | 188 (15.0) | 32 (3.7) | |
| Some | 367 (17.3) | 169 (13.5) | 198 (22.9) | |
| A lot | 682 (32.2) | 116 (9.2) | 566 (65.6) | |
| Allostatic load risk scores [m (sd)] | ||||
| SNS | 0.26 (0.35) | 0.25 (0.35) | 0.27 (0.36) | 8.8 |
| PNS | 0.25 (0.36) | 0.25 (0.36) | 0.25 (0.36) | 14.3 |
| HPA Axis | 0.25 (0.31) | 0.25 (0.31) | 0.25 (0.31) | 8.4 |
| Inflammation | 0.25 (0.26) | 0.25 (0.26) | 0.25 (0.27) | 1.7 |
| Cardiovascular | 0.25 (0.30) | 0.25 (0.29) | 0.25 (0.30) | 0.2 |
| Metabolic Glucose | 0.25 (0.33) | 0.25 (0.33) | 0.25 (0.34) | 2.1 |
| Metabolic Lipids | 0.25 (0.24) | 0.25 (0.25) | 0.25 (0.24) | 1.2 |
| Overall AL Score | 1.76 (1.09) | 1.75 (1.05) | 1.78 (1.15) | 8.5 |
Abbreviations: SNS – sympathetic nervous system; PNS – parasympathetic nervous system; HPA axis – hypothalamic-pituitary-adrenal
A:
Percent missing in observed data
B:
Other includes Indigenous, Asian, Native Hawaiian respondents