Table 1 Patient and test characteristics
Overall | Index HbA1c ≥ 7 | Index HbA1c < 7 | P-value | |
|---|---|---|---|---|
Number of PLWD | 132,859 | 114,799 | 18,060 | - |
Number of test requests | 445,536 | 391,021 | 54,515 | - |
Mean(SD) age at index test (years) | 54.1 (12.7) | 54.5 (12.4) | 58.5 (12.9) | < 0.001 |
Baseline age group | < 0.001 | |||
18–24 years | 1,565 (1.2%) | 1,449 (1.3%) | 116 (0.6%) | |
25–34 years | 7,057 (5.3%) | 6,339 (5.5%) | 718 (4.0%) | |
35–44 years | 17,334 (13.0%) | 15,519 (13.5%) | 1,815 (10.1%) | |
45–54 years | 35,601 (26.8%) | 31,741 (27.6%) | 3,860 (21.4%) | |
55–64 years | 40,622 (30.6%) | 35,348 (30.8%) | 5,274 (29.1%) | |
65 + years | 30,679 (23.1%) | 24,403 (21.3%) | 6,276 (34.8%) | |
Sex | 0.076 | |||
Female | 87,185 (65.6%) | 75,439 (65.7%) | 11,746 (65.0%) | |
Median (IQR) HbA1c (%) index test | 9.10 (7.5, 11.1) | 9.6 (8.1, 11.4) | 6.70 (6.6, 6.8) | < 0.001 |
Median (IQR) retest interval (months) | 10.3(5.5, 14.7) | 10.1(5.5, 14.6) | 11.1(6.4, 15.8) | < 0.001 |
Median (IQR) test requests per patient | 3 (2, 5) | 3 (2, 5) | 3 (2, 4) | < 0.001 |
Median (IQR) follow-up time (years) | 2.30 (1.40, 3.20) | 2.30 (1.40, 3.20) | 2.35 (1.40, 3.10) | 0.091 |
Monitoring adherence category | < 0.001 | |||
Low (< 33.3%) | 112,535 (84.7%) | 98,895 (86.1%) | 13,640 (75.5%) | |
Moderate (33.3–66.7%) | 14,460 (10.9%) | 11,792 (10.3%) | 2,668 (14.8%) | |
High (> 66.7%) | 5,864 (4.4%) | 4,112 (3.6%) | 1,752 (9.7%) | |
Province | < 0.001 | |||
Western Cape | 127,624 (96.1%) | 110,408 (96.2%) | 17,216 (95.3%) |