Table 3.
The dose of the effective circadian irradiation (Hec) of the patients in the group with a biodynamic lighting system (BDL) and the control group during the inpatient stay.
| Effective circadian irradiation dose (Hec, J/m2) | ||||
|---|---|---|---|---|
| Day | Time | BDL(n=27) | Control(n=20) | p Value |
| Day 1 | 0700-1200 | 760 (386-1399) | 124 (34-314) | <0.001 |
| 1200-1700 | 180 (110-398) | 84 (13-534) | 0.098 | |
| 1700-2130 | 93 (51-177) | 52 (7-200) | 0.292 | |
| p Value* | 0.002; <0.001; 0.012 | ns | ||
| Day 2 | 0700-1200 | 628 (336-1415) | 153 (67-509) | 0.001 |
| 1200-1700 | 262 (122-424) | 237 (36-438) | 0.464 | |
| 1700-2130 | 117 (43-214) | 39 (11-189) | 0.111 | |
| p Value* | <0.001; <0.001; <0.001 | ns | ||
| Day 3 | 0700-1200 | 875 (626-1230) | 258 (35-692) | <0.001 |
| 1200-1700 | 371 (196-1202) | 90 (22-229) | 0.001 | |
| 1700-2130 | 93 (60-120) | 60 (4-130) | 0.175 | |
| p Value* | 0.023; <0.001; <0.001 | ns; 0.009; 0.025 | ||
| Day 4 | 0700-1200 | 746 (472-1080) | 235 (79-440) | <0.001 |
| 1200-1700 | 268 (113-450) | 100 (26-482) | 0.158 | |
| 1700-2130 | 120 (68-301) | 91 (1-230) | 0.165 | |
| p Value* | 0.001; <0.001; ns | ns; 0.030; ns | ||
| Day 5 | 0700-1200 | 955 (775-1183) | 204 (120-499) | 0.001 |
| 1200-1700 | 219 (138-438) | 69 (31-540) | 0.101 | |
| 1700-2130 | 117 (93-148) | 43 (26-179) | 0.141 | |
| p Value* | 0.001; <0.001; 0.002 | ns; 0.028; ns | ||
The data are expressed as the median (IQR).
* p Value: 0700-1200 vs. 1200-1700; 0700-1200 vs. 1700-2130; 1200-1700 vs. 1700-2130, ns, non-significant.