Table 1 Participant Demographics, Lonely vs. Not Lonely.

From: Synergy of pandemics-social isolation is associated with worsened Parkinson severity and quality of life

  Idiopathic PD n = 1527 Lonely n = 261 (17%) Not Lonely n = 1252 (82%)
Age, mean (y) 62.9 (9.2) 61.4 (9.1) 63.3 (9.1)
Years since diagnosis 4.8 (4.9) 5.6 (6.6) 4.6 (4.5)
Gender
 Female 839 (54.9%) 152 (18.1%) 679 (80.9%)
 Male 677 (44.3%) 108 (16.0%) 563 (83.2%)
 Not responded 11 (0.7%) 1 (9.1%) 10 (90.9%)
Married, coliving partner 1,218 (79.8%) 147 (12.1%) 1059 (86.9%)
Divorced 150 (9.8%) 63 (42.0%) 85 (56.7%)
Single 110 (7.2%) 36 (32.7%) 74 (67.3%)
Other/not responded 49 (3.2%) 15 (30.6%) 34 (69.4%)
Hoehn & Yahr stage
 1: unilateral 819 (53.6%) 104 (12.7%) 708 (86.4%)
 2: bilateral, good balance 250 (16.4%) 39 (15.6%) 209 (83.6%)
 3: postural instability 368 (24.1%) 92 (25.0%) 272 (73.9%)
 4: severe disability, independent 39 (2.6%) 15 (38.5%) 24 (61.5%)
 5: wheelchair/bed, dependent 4 (0.3%) 1 (25.0%) 3 (75.0%)
 Don’t know/not responded 47 (3.1%) 10 (21.3%) 36 (76.6%)
PRO-PD 786 (472.8) 1111 (510.7) 716 (421.7)
PROMIS Global (N = 1451) 36.6 (6.7) 30.1 (6.2) 38.3 (6.0)
6-month progression
 Improved 146 (9.6%) 19 (13.0%) 125 (85.6%)
 Stable 801 (52.5%) 112 (14.0%) 682 (85.1%)
 Worsened 569 (37.3%) 130 (22.8%) 435 (76.4%)
 Not responded 11 (0.7%) 0 (0.0%) 10 (90.9%)
Income, annual
 <$20,000 83 (5.4%) 38 (45.8%) 43 (51.8%)
 $20,000–$40,000 207 (13.6%) 52 (25.1%) 152 (73.4%)
 $40,000–$60,000 231 (15.1%) 40 (17.3%) 191 (82.7%)
 $60,000–$80,000 227 (14.9%) 33 (14.5%) 191 (84.1%)
 $80,000–$100,000 213 (14.0%) 27 (12.7%) 185 (86.9%)
 $100,000–$150,000 291 (19.1%) 43 (14.8%) 247 (84.9%)
 $150,000+ 275 (18.0%) 28 (10.2%) 243 (88.4%)
Social behaviors
 I am in a support group 593 (38.8%) 94 (15.9%) 495 (83.5%)
 I routinely prepare meals for others 687 (45%) 87 (12.7%) 596 (86.8%)
 I have lots of friends 981 (64.2%) 88 (9.0%) 886 (90.3%)
 I go to church 514 (33.7%) 83 (16.1%) 429 (83.5%)
 I have pets 871 (57%) 147 (16.9%) 716 (82.2%)
 I am overweight 572 (37.5%) 119 (20.8%) 447 (78.1%)