Table 3.
Physical functioning: PHQ-9 score
| PHQ-9 0 (N=484) | PHQ-9 1–4 (N=1086) | PHQ-9 5–9 (N=518) | PHQ-9 10–14 (N=184) | PHQ-9 15+ (N=93) | |
| 6 min walk* | 485.5 (444.0, 543.2) | 480.0 (431.7, 530.3) | 465.0 (422.0, 517.6) | 460.1 (403.8, 511.9) | 443.0 (391.2, 492.4) |
| 30 s chair stand* | 15.0 (12.0, 18.0) | 14.0 (12.0, 17.0) | 13.0 (11.0, 16.0) | 13.0 (10.0, 16.0) | 12.0 (10.0, 15.0) |
| Mean leg balance time† | 60.0 (23.5, 60.0) | 55.0 (21.4, 60.0) | 50.5 (14.0, 60.0) | 49.5 (11.0, 60.0) | 44.0 (12.5, 60.0) |
| 10-metre walk speed* | 2.0 (1.8, 2.2) | 2.0 (1.8, 2.2) | 2.0 (1.6, 2.1) | 1.8 (1.5, 2.0) | 1.8 (1.5, 2.0) |
| Handgrip† | 35.8 (27.8, 44.4) | 32.5 (26.3, 42.5) | 32.3 (26.4, 42.8) | 33.4 (25.6, 40.7) | 30.0 (22.0, 39.7) |
| Sit-rise score | 8.0 (6.0, 9.0) | 8.0 (6.0, 9.0) | 8.0 (6.0, 9.0) | 8.0 (6.0, 9.0) | 7.5 (5.0, 9.0) |
| EF at rest, % | 59.0 (55.8, 60.5) | 58.8 (55.9, 60.5) | 59.2 (56.1, 60.5) | 59.2 (56.0, 61.4) | 58.9 (56.0, 60.9) |
| Mean steps in first 30 days* | 8398.0 (6560.6, 10709.6) | 8172.2 (6220.6, 10335.7) | 7666.7 (5128.2, 9862.5) | 7008.4 (4673.5, 9821.8) | 6498.1 (4684.1, 9044.5) |
| Coronary calcium score† | 0.0 (0.0, 33.9) | 0.0 (0.0, 42.6) | 0.0 (0.0, 8.8) | 0.0 (0.0, 7.1) | 0.0 (0.0, 1.9) |
| FEV1/FVC | 0.8 (0.7, 0.8) | 0.8 (0.7, 0.8) | 0.8 (0.7, 0.8) | 0.8 (0.7, 0.8) | 0.8 (0.7, 0.8) |
| ABI† | 1.1 (1.1, 1.2) | 1.1 (1.1, 1.2) | 1.1 (1.1, 1.2) | 1.1 (1.0, 1.2) | 1.1 (1.0, 1.2) |
Data presented as median (25th, 75th percentile).
P values for trend were calculated with the use of Spearman correlation or Cochrane-Armitage tests, where appropriate.
*P value for trend <0.01.
†P value for trend <0.001.
ABI, ankle brachial index; EF, ejection fraction; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; PHQ-9, Patient Health Questionnaire.