Table 2.
Comparison of metric variables to assess group balance after adjusting counterfactual. Calculation for baseline years.
| Indicator | Initial: Treatment: 9083/Control: 123 699 |
PSM: Treatment/Control = 8003 |
Entropy balancing: Treatment/Control = 9083 |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean (SD) Treat |
Mean (SD) Control |
stdmdiff | Mean (SD) Treat |
Mean (SD) Control |
stdmdiff | Mean (SD) Treat |
Mean (SD) Control |
stdmdiff | |
| Age | 46.7 (24.8) | 46.6 (23) | 0.05 | 46.6 (24.4) | 47 (23.7) | 0.02 | 46.7 (24.8) | 46.7 (24.8) | 0 |
| Sex (1 = Female) | 0.6 (0.5) | 0.5 (0.5) | 0.05 | 0.6 (0.5) | 0.6 (0.5) | 0 | 0.6 (0.5) | 0.6 (0.5) | 0 |
| Charlson Score | 1.8 (2.3) | 1.6 (2.2) | 0.1 | 1.7 (2.1) | 1.7 (2.1) | 0.02 | 1.8 (2.3) | 1.8 (2.2) | 0.03 |
| Insured days | 729.3 (11.2) | 727.8 (18.7) | 0.08 | 729.6 (9.1) | 728.4 (17.2) | 0.08 | 729.3 (11.2) | 728 (18.1) | 0.09 |
| N° physician visits | 13.7 (9.6) | 11.3 (10.6) | 0.23 | 12.9 (9.3) | 12.4 (9.4) | 0.05 | 13.7 (9.6) | 13.1 (10.2) | 0.06 |
| N° specialist visits | 6.2 (5.8) | 4.8 (5.6) | 0.25 | 5.7 (5.6) | 5.6 (5.6) | 0.03 | 6.2 (5.8) | 6 (6.1) | 0.03 |
| N° Hospital visits | 0.4 (1) | 0.4 (1.1) | 0.04 | 0.4 (0.9) | 0.4 (1.2) | 0.03 | 0.4 (1) | 0.4 (1.1) | 0 |
| Hosp LOS | 4.0 (13.6) | 3.6 (13.9) | 0.03 | 3.5 (12.5) | 3.9 (15.1) | 0.03 | 4.0 (13.6) | 4 (15.4) | 0 |
| Rehab LOS | 0.9 (5.5) | 0.7 (4.9) | 0.05 | 0.8 (5.1) | 0.8 (4.8) | 0.01 | 0.9 (5.5) | 0.8 (5.4) | 0.02 |
| N° prescriptions | 7.4 (6.7) | 5.7 (6.7) | 0.25 | 7 (6.4) | 6.6 (6.7) | 0.06 | 7.4 (6.7) | 6.9 (7) | 0.07 |
| Temp. Incapacity for work | 15.9 (44.9) | 12.5 (39.9) | 0.08 | 14.8 (43.1) | 15.1 (43.2) | 0.01 | 15.9 (44.9) | 14.7 (46.5) | 0.03 |
| Perm. Incapacity for work | 6.2 (64.9) | 5.8 (62.6) | 0.01 | 7 (68.6) | 6 (64) | 0.02 | 6.2 (64.9) | 6.1 (64) | 0 |
| Long term care level | 0.1 (0.5) | 0.1 (0.5) | 0.03 | 0.1 (0.4) | 0.1 (0.4) | 0.03 | 0.1 (0.5) | 0.1 (0.5) | 0.01 |
| N° Rehab cases | 0 (0.3) | 0 (0.2) | 0.06 | 0 (0.2) | 0 (0.2) | 0.01 | 0 (0.3) | 0 (0.2) | 0.03 |
| Age at the start of LTC | 68.6 (18.6) | 72.2 (17.6) | 0.2 | 69.1 (18.8) | 67.7 (19.6) | 0.07 | 68.6 (18.6) | 70.9 (20.6) | 0.1 |
| 10-year survival rate | 0.8 (0.3) | 0.8 (0.3) | 0.08 | 0.8 (0.3) | 0.8 (0.3) | 0.03 | 0.8 (0.3) | 0.8 (0.3) | 0.02 |
| Risk adjusted Contribution | 1570 (3242) | 2089 (4046) | 0.13 | 1447 (2778) | 1475 (2893) | 0.01 | 1570 (3242) | 1916 (3688) | 0.1 |
| Total cost | 3647 (8728) | 3223 (9206) | 0.05 | 3230 (7510) | 3366 (8005) | 0.02 | 3647 (8728) | 3533 (8656) | 0.01 |
LOS: Length of stay; LTC: Long-term care, stdmdiff: Standard mean difference.