Table 4 2SLS estimatesa of the effect of BMI on GP-, specialist-, and total costs
Type of healthcare cost | Instrument | 2SLS First-stage Beta instrument (SE) | 2SLS Second-stage Beta BMI (SE) € |  |
|---|---|---|---|---|
F-stat. | ||||
General practitioner costs | Unweighted GRS | 0.1 (0.003)*** | 6.6 (1.177)*** | 1123.0 |
Weighted GRS | 4.0 (0.105)*** | 5.6 (1.026)*** | 1484.4 | |
FTO & MC4R | 0.4 (0.025)*** & 0.3 (0.028)*** | 1.8 (2.116) | 173.2 | |
Specialist costs | Unweighted GRS | 0.1 (0.003)*** | 2.3 (40.035) | 1123.0 |
Weighted GRS | 4.0 (0.105)*** | 14.9 (34.915) | 1484.4 | |
FTO & MC4R | 0.4 (0.025)*** & 0.3 (0.028)*** | −0.3 (71.640) | 173.2 | |
Total costs | Unweighted GRS | 0.1 (0.003)*** | 3.3 (40.053) | 1123.0 |
Weighted GRS | 4.0 (0.105)*** | 15.8 (34.932) | 1484.4 | |
FTO & MC4R | 0.4 (0.025)*** & 0.3 (0.028)*** | −0.4 (71.675) | 173.2 |