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Table 2 Association of selected characteristics with physical activity levels and rest-activity circadian rhythm parameters

From: Changes in physical activity and rest-activity circadian rhythm among Hong Kong community aged population before and during COVID-19

  Physical activity Rest-activity circadian rhythm
MET/minutes MESOR Amplitude Acrophase Percent rhythm
  Low N = 132 N(%) High N = 110 N(%) Crude OR (CI) Low N = 109 N(%) High N = 108 N(%) Crude OR (CI) Low N = 109 N(%) High N = 108 N(%) Crude OR (CI) Advanced N = 109 N(%) Delayed N = 108 N(%) Crude OR (CI) Low N = 109 N(%) High N = 108 N(%) Crude OR (CI)
Age 73.13 + 8.21 72.71 + 7.91 1.01 (0.98–1.04) 73.96 + 7.72 71.64 + 7.74 1.04 (1.00–1.08) 74.71 + 7.54 70.89 + 7.62 1.07 (1.03–1.11) 73.83 + 7.54 71.77 + 7.62 1.04 (1.00–1.07) 72.57 + 7.74 73.03 + 7.89 0.99 (0.96–1.03)
Education attainment
 Primary education or below 74 (56.1) 63 (57.3) 0.95 (0.57–1.59) 67 (62.0) 53 (48.6) 0.58 (0.34–0.99) 60 (55.0) 60 (55.6) 0.98 (0.57–1.67) 74 (67.9) 46 (42.6) 2.85 (1.64–4.96) 60 (55.0) 60 (55.6) 0.98 (0.57–1.67)
 Secondary education or above 58 (43.9) 47 (42.7) 1.00 41 (38.0) 56 (51.4) 1.00 49 (45.0) 48 (44.4) 1.00 35 (32.1) 62 (57.4) 1.00 49 (45.0) 48 (44.4) 1.00
Marital status
 Married 109 (82.6) 83 (75.5) 1.00 82 (75.2) 90 (83.3) 1.00 85 (81.0) 87 (81.3) 1.00 87 (81.3) 85 (81.0) 1.00 81 (76.4) 91 (84.3) 1.00
 Single/ widow/ divorce 20 (15.2) 25 (22.7) 0.61 (0.32–1.17) 22 (20.2) 18 (16.7) 1.34 (0.67–2.68) 20 (19.3) 20 (18.7) 1.02 (0.51–2.04) 20 (18.7) 20 (19.0) 0.98 (0.49–1.94) 25 (23.6) 15 (13.9) 1.87 (0.92–3.80)
Employment status
 Retired/unemployed 107 (81.7) 94 (85.5) 0.76 (0.38–1.51) 100 (91.7) 80 (74.1) 3.89 (1.74–8.71) 98 (89.9) 82 (75.9) 2.83 (1.32–6.06) 89 (81.7) 91 (84.3) 0.83 (0.41–1.69) 95 (87.2) 85 (78.7) 1.84 (0.89–3.80)
 Full-time/Part-time 24 (18.3) 16 (14.5) 1.00 9 (8.3) 28 (25.9) 1.00 11 (10.1) 26 (24.1) 1.00 20 (18.3) 17 (15.7) 1.00 14 (12.8) 23 (21.3) 1.00
Smoking
 Never smoke 62 (47.0) 57 (51.8) 1.00 50 (45.9) 56 (51.9) 1.00 53 (48.6) 53 (49.1) 1.00 51 (46.8) 55 (50.9) 1.00 49 (45.0) 57 (52.8) 1.00
 Smoker/former smoker 70 (53.0) 53 (48.2) 1.21 (0.73–2.02) 59 (54.1) 52 (48.1) 1.27 (0.75–2.17) 56 (51.4) 55 (50.9) 1.02 (0.60–1.73) 58 (53.2) 53 (49.1) 1.18 (0.69–2.01) 60 (55.0) 51 (47.2) 1.37 (0.80–2.33)
Alcohol consumption
 Non-drinker 93 (70.5) 77 (70.0) 1.00 74 (67.9) 76 (70.4) 1.00 76 (69.7) 74 (68.5) 1.00 71 (65.1) 79 (73.1) 1.00 76 (69.7) 74 (68.5) 1.00
 Drinker/former drinker 39 (29.5) 33 (30.0) 0.78 (0.56–1.70) 35 (32.1) 32 (29.6) 1.12 (0.63–2.00) 33 (30.3) 34 (31.5) 0.95 (0.53–1.68) 38 (34.9) 29 (26.9) 1.46 (0.82–2.60) 33 (30.3) 34 (31.5) 0.95 (0.53–1.68)
BMI
 Underweight/ Normal weight 72 (55.0) 78 (70.9) 1.00 61 (56.5) 74 (68.5) 1.00 64 (58.7) 71 (65.7) 1.00 70 (64.8) 65 (60.2) 1.00 62 (57.4) 73 (67.6) 1.00
 Overweight 47 (35.9) 27 (24.5) 1.87 (1.07–3.34) 39 (36.1) 26 (24.1) 1.82 (1.00–3.32) 34 (31.2) 31 (28.7) 1.22 (0.67–2.20) 31 (28.7) 34 (31.5) 0.85 (0.47–1.53) 35 (32.4) 30 (27.8) 1.37 (0.76–2.49)
 Obesity 12 (9.2) 5 (4.5) 2.60 (0.87–7.74) 8 (7.4) 8 (7.4) 1.21 (0.43–3.42) 10 (9.2) 6 (5.6) 1.85 (0.64–5.37) 7 (6.5) 9 (8.3) 0.72 (0.25–2.05) 11 (10.2) 5 (4.6) 2.59 (0.85–7.86)
  1. Abbreviations: OR odds ratio, CI confidence intervals, BMI body mass index