Table 1.
Characteristics of participants as a function of dementia status at the end of follow-up* (March 31, 2019).
| No dementia | Dementia | P | |||
|---|---|---|---|---|---|
| N = 8479 | N = 567 | ||||
| n | % | n | % | ||
| Women | 2616 | 30.9 | 224 | 39.5 | <0.001 |
| White | 7713 | 91.0 | 490 | 86.4 | <0.001 |
| University-level education | 2329 | 27.5 | 119 | 21.0 | <0.001 |
| n | % | n | % | P | |
|---|---|---|---|---|---|
| Characteristics at the first wave of pain measurement | |||||
| Married/cohabiting | 6480 | 76.4 | 412 | 72.7 | 0.04 |
| Depression | 263 | 3.1 | 27 | 4.8 | 0.03 |
| Pain medication use | 559 | 6.6 | 48 | 8.5 | 0.08 |
| At least 1 chronic disease† | 1345 | 15.9 | 135 | 23.8 | <0.001 |
| Moderate to severe pain | |||||
| Total pain (score > 32.5) | 1125 | 13.3 | 104 | 18.3 | 0.001 |
| Pain intensity (score > 40) | 1272 | 15.0 | 120 | 21.2 | <0.001 |
| Pain interference (score > 25) | 686 | 8.1 | 74 | 13.1 | <0.001 |
| Mean | SD | Mean | SD | P | |
|---|---|---|---|---|---|
| Age, y | 50.3 | 6.3 | 55.8 | 5.1 | <0.001 |
| Pain variables | |||||
| Total pain | 15.7 | 19.3 | 19.4 | 22.2 | <0.001 |
| Pain intensity | 21.9 | 23.4 | 25.9 | 25.5 | <0.001 |
| Pain interference | 9.4 | 18.8 | 12.9 | 22.3 | <0.001 |
| n | % | n | % | P | |
|---|---|---|---|---|---|
| Characteristics at last wave of pain measurement | |||||
| Married/cohabiting | 6017 | 71.0 | 363 | 64.0 | <0.001 |
| Depression | 957 | 11.3 | 104 | 18.3 | <0.001 |
| Pain medication use | 1453 | 17.1 | 116 | 20.5 | 0.04 |
| At least 1 chronic disease† | 4416 | 52.1 | 335 | 59.1 | 0.001 |
| Moderate to severe pain | |||||
| Total pain (score > 32.5) | 2119 | 25.0 | 228 | 40.2 | <0.001 |
| Pain intensity (score > 40) | 2160 | 25.5 | 209 | 36.9 | <0.001 |
| Pain interference (score > 25) | 1472 | 17.4 | 182 | 32.1 | <0.001 |
| Mean | SD | Mean | SD | P | |
|---|---|---|---|---|---|
| Age, y | 68.9 | 8.6 | 70.9 | 8.1 | <0.001 |
| Pain variables | |||||
| Total pain | 24.2 | 22.7 | 31.2 | 26.7 | <0.001 |
| Pain intensity | 31.2 | 24.5 | 35.6 | 27.3 | <0.001 |
| Pain interference | 17.3 | 24.1 | 26.7 | 29.1 | <0.001 |
*
Among participants with data at least once over the follow-up period.
†
Chronic diseases: coronary heart disease, stroke, chronic obstructive pulmonary disease, cancers, type 2 diabetes, osteoarthritis, rheumatoid arthritis, Parkinson disease, and obesity.