| Any sleep symptoms (−) (n = 115) | Any sleep symptoms (+) (n = 227) | p-value |
---|---|---|---|
Age (years) | 63.6 (9.61) | 63.08 (10.52) | 0.66 |
Male | 81.7% (94) | 82.8% (188) | 0.804 |
Marital status | Â | Â | 0.068 |
 Married/living with partner | 80.9 (93) | 71.8% (163) |  |
 Divorced/separated/widowed | 19.1% (22) | 28.2% (64) |  |
Education | Â | Â | 0.306 |
 University degree | 42.6% (49) | 48.5% (110) |  |
 All others | 57.4% (66) | 51.5% (117) |  |
Household income | Â | Â | 0.018 |
  < 3,000,000JPY | 18.3% (21) | 16.3% (37) |  |
 3,000,000 to < 5,000,000 JPY | 21.7% (25) | 31.3% (71) |  |
 5,000,000 to < 8,000,000 JPY | 24.3% (28) | 23.8% (54) |  |
 8,000,000 JPY or more | 15.7% (18) | 20.3% (46) |  |
 Decline to answer | 20.0% (23) | 8.4% (19) |  |
Insurance | Â | Â | 0.813 |
 National health insurance | 59.1% (68) | 55.9% (127) |  |
 Social insurance | 27.8% (32) | 32.2% (73) |  |
 Late stage elderly insurance | 8.7% (10) | 8.8% (20) |  |
 Other/No insurance | 4.3% (5) | 3.1% (7) |  |
Worker | 40.0% (46) | 49.3% (112) | 0.102 |
Charlson comorbidity index | 0.27 (0.61) | 0.55 (1.01) | 0.008 |
Smoking status | Â | Â | 0.007 |
 Current smoker | 22.6% (26) | 28.2% (64) |  |
 Former smoker | 31.3% (36) | 42.7% (97) |  |
 Never smoker | 46.1% (53) | 29.1% (66) |  |
Currently exerciser | 55.7% (64) | 54.6% (124) | 0.857 |
Alcohol drinker | 65.2% (75) | 71.4% (162) | 0.244 |
BMI category | Â | Â | 0.131 |
 Underweight (< 18.5) | 6.1% (7) | 3.1% (7) |  |
 Normal weight (18.5 to < 25) | 60.9% (70) | 52.4% (119) |  |
 Overweight (25 to < 30) | 20.9% (24) | 30.4% (69) |  |
 Obese (≥30) | 8.7% (10) | 12.3% (28) |  |
 Decline to answer | 3.5% (4) | 1.8% (4) |  |
Taking steps to lose weight | 28.7% (33) | 38.8% (88) | 0.066 |
Duration of T2DM (years) | 13.83 (10.63) | 13.39 (10.59) | 0.721 |
HbA1c level | Â | Â | 0.008 |
 HbA1c < 7 | 34.8% (40) | 38.3% (87) |  |
 HbA1c ≥7 | 34.8% (40) | 45.4% (103) |  |
 Don’t know/Decline to answer | 30.4% (35) | 16.3% (37) |  |
Use of injectable medications | 11.3% (13) | 17.6% (40) | 0.127 |
Ever experienced hypoglycemia | Â | Â | 0.001 |
 Experienced hypoglycemia | 14.8% (17) | 34.4% (78) |  |
 Not experienced hypoglycemia | 74.8% (86) | 57.7% (131) |  |
 Do not know | 10.4% (12) | 7.9% (18) |  |