Table 3.
Adherence to baseline and follow-up studies, stratified analysis by sex and age.
| Strata by gender | ||||||
|---|---|---|---|---|---|---|
| Characteristics | Female N = 11,264 | Male N = 12,830 | p -value | |||
| Baseline monitoring | ||||||
| Thyroid function tests | 5,032 (44.7) | 5,436 (42.2) | <0.001 | |||
| Electrolytes | 6,419 (57.0) | 7,831 (59.5) | <0.001 | |||
| Liver enzymes Baseline (%) | 5,308 (47.1) | 6,404 (49.9) | <0.001 | |||
| Chest X-ray | 2,197 (19.5) | 2,768 (21.6) | <0.001 | |||
| All required studies (%) | 342 (3.0) | 400 (3.1) | 0.743 | |||
| Follow-up studies every 6 months | ||||||
| Thyroid function tests | 8,274 (73.5) | 8,695 (67.8) | <0.001 | |||
| Electrolytes | 9,934 (88.2) | 11,348 (88.4) | 0.549 | |||
| Liver enzymes Baseline (%) | 8,856 (78.6) | 10,183 (79.4) | 0.16 | |||
| All required studies (%) | 3,871 (34.4) | 4,891 (38.1) | <0.001 | |||
| Strata by age | ||||||
| Characteristics | 18–30 N = 39 | 31–50 N = 479 | 51–70 N = 6,927 | 71–80 N = 8,240 | >80 N = 8,409 | p for trend |
| Baseline monitoring | ||||||
| Thyroid function tests | 16 (41.0) | 209 (43.6) | 2,988 (43.1) | 3,613 (43.8) | 3,642 (43.3) | 0.914 |
| Electrolytes | 14 (35.9) | 264 (55.1) | 4,052 (58.5) | 4,873 (59.1) | 4,847 (57.6) | 0.007 |
| Liver enzymes Baseline (%) | 16 (41.0) | 230 (48.8) | 3,578 (50.2) | 4,037 (49.0) | 3,951 (47.0) | 0.002 |
| Chest X-ray | 7 (17.9) | 121 (25.3) | 1,588 (22.9) | 1,763 (21.4) | 1,486 (17.7) | <0.001 |
| All required studies (%) | 2 (5.1) | 23 (4.8) | 242 (3.5) | 252 (3.1) | 223 (2.7) | 0.006 |
| Follow-up studies every 6 months | ||||||
| Thyroid function tests | 24 (61.5) | 321 (67.0) | 4,836 (69.8) | 5,977 (72.5) | 5,811 (69.1) | <0.001 |
| Electrolytes | 29 (74.4) | 386 (80.6) | 6,068 (87.6) | 7,467 (90.6) | 7,332 (87.2) | <0.001 |
| Liver enzymes baseline (%) | 27 (69.2) | 355 (74.1) | 5,495 (79.3) | 6,685 (81.1) | 6,477 (77.0) | <0.001 |
| All required studies (%) | 17 (43.6) | 193 (40.3) | 2,550 (36.8) | 2,817 (34.2) | 3,185 (37.9) | <0.001 |