Table 3. Characteristics of the study population with a history of Tuberculosis (TB) and stratified by the onset of the TB episode in relation to diabetes ascertainment.
| ALL N = 1802 (98%) a | TB episode before diabetes ascertainment N = 794 (44%) | TB episode after diabetes ascertainment N = 1008 (56%) | p-value | |
|---|---|---|---|---|
| Sex (Female) | 1023 (56.8%) | 442 (55.7%) | 581 (57.7%) | 0.415 |
| Age at diabetes ascertainment (Years) | 49.0 [41.0;56.0] | 49.0 [41.2;57.0] | 48.0 [41.0;56.0] | 0.13 |
| Baseline HbA1c (%) | 9.2 [7.1;11.8] | 8.2 [6.8;11.0] | 10.1 [7.6;12.4] | <0.001 |
| Baseline Hba1c < 7% | 327 (22.3%) | 189 (28.9%) | 138 (17.0%) | <0.001 |
| Last HbA1c (%) | 11.0 [7.6;14.1] | 10.8 [7.2;14.4] | 11.1 [8.0;13.9] | 0.130 |
| Last HbA1c < 7% | 328 (18.2%) | 173 (21.8%) | 155 (15.4%) | <0.001 |
| HIV Positive | 791 (43.9%) | 410 (51.6%) | 381 (37.8%) | <0.001 |
| Diabetes duration since ascertainment (Years) | 5.1 [1.8;7.1] | 3.3 [0.5;6.1] | 6.1 [3.5;7.9] | <0.001 |
| Patient outcome (Deceased) | 178 (9.9%) | 53 (6.7%) | 125 (12.4%) | <0.001 |
| Ever started TB treatment | 1802 (100.0%) | 794 (100.0%) | 1008 (100.0%) | . |
| Ever started diabetes treatment | 1579 (87.6%) | 640 (80.6%) | 939 (93.2%) | <0.001 |
| Linkage to diabetes treatment b | 1350 (85.5%) | 536 (83.8%) | 814 (86.7%) | 0.120 |
| Linkage to HbA1c testing c | 1209 (67.1%) | 532 (67.0%) | 677 (67.2%) | 0.983 |
a. 35 (2%) individuals who had ever had TB did not have enough data to classify when they had a TB episode relative to diabetes ascertainment
b. Proportions of patients having a record of diabetes drugs being prescribed within one year of their last recorded diabetes-related hospital encounter (calculated from those who had ever started diabetes treatment)
c. Proportion of patients having a recorded HbA1c laboratory test result within one year of the last recorded diabetes related hospital encounter