Table 2.
Mean serum creatinine and eGFR, and prevalence of decreased renal function among adults in a population survey in north‐western Tanzania, 2012–2013
| Mwanza city (n = 170) | District towns (n = 326) | Rural (n = 547) | |
|---|---|---|---|
| Weighted mean (95% CI)a | Weighted mean (95% CI)a | Weighted mean (95% CI)a | |
| Serum creatinine (mg/dl) | 0.73 (0.69–0.77) | 0.80 (0.76–0.84) | 0.79 (0.76–0.81) |
| Estimated GFR (ml/min/1.73 m2) | |||
| CKD‐EPI equationb,c | 114.5 (109.9–119.0) | 110.2 (106.9–113.5) | 107.7 (105.4–110.1) |
| MDRD equationb,c | 116.8 (105.9–127.7) | 110.0 (105.8–114.2) | 111.1 (107.1–115.0) |
|
Weighted % (95% CI)a |
Unweighted Nd |
Weighted % (95% CI)a |
Unweighted Nd | Weighted % (95% CI)a | Unweighted Nd | |
|---|---|---|---|---|---|---|
| KDIGO Kidney disease categorye | ||||||
| Normal (eGFR ≥90) | 87.4 (79.6–92.5) | 150 | 81.6 (76.6–85.7) | 266 | 79.4 (75.5–82.9) | 432 |
| Mildly decreased (eGFR 60–89) | 10.3 (5.9–17.4) | 16 | 10.9 (8.8–13.5) | 37 | 13.9 (10.3–16.7) | 73 |
| Mildly–moderately decreased (eGFR 45–59) | 2.3 (0.8–6.6) | 4 | 4.8 (2.7–8.4) | 15 | 5.3 (3.3–8.2) | 30 |
| Moderately–severely decreased (eGFR 30–44) | 0 | 0 | 2.4 (0.8–6.9) | 7 | 1.6 (0.9–2.8) | 10 |
| Severely decreased (eGFR 15–29) | 0 | 0 | 0.3 (0.0–2.3) | 1 | 0.6 (0.1–1.9) | 2 |
| Kidney failure (eGFR <15) | 0 | 0 | 0 | 0 | 0 | 0 |
| eGFR <60 ml/min/1.73 m2 (CKD‐EPI)b,c | ||||||
| Yes | 2.3 (0.8–6.6) | 4 | 7.5 (4.7–11.8) | 23 | 7.4 (5.1–10.6) | 42 |
| Age <20 years | 0 | 0 | 5.6 (1.8–16.3) | 2 | 0 | 0 |
| Age 20–39 years | 0 | 0 | 7.6 (4.4–12.6) | 15 | 5.9 (3.1–10.7) | 17 |
| Age 40–59 years | 8.5 (2.8–22.8) | 3 | 5.5 (1.3–20.6) | 3 | 9.6 (5.1–17.3) | 14 |
| Age ≥60 years | 7.8 (0.8–46.2) | 1 | 18.6 (5.6–47.1) | 3 | 14.8 (6.9–28.7) | 11 |
| eGFR <60 ml/min/1.73 m2 (MDRD)b,c | ||||||
| Yes | 3.7 (1.5–8.5) | 6 | 9.4 (6.0–14.5) | 29 | 10.2 (7.8–13.2) | 59 |
a
Values are weighted estimates, adjusted for survey design with sampling weights applied.
b
The CKD‐EPI eGFR calculations were used as the primary outcomes in this study. The MDRD eGFR calculation is provided for the sake of comparison.
c
Without coefficient for black race.
d
Actual number of respondents, without sampling weights applied.
e
Based on CKD‐EPI equation without coefficient for race.