Table 3. Results from different groups according to the duration of medication administration.
| Group 1 | Group 2 | Group 3 | Group 4 | |
|---|---|---|---|---|
| (n = 144) | (n = 35) | (n = 30) | (n = 38) | |
| Basal serum K+ (mmol/L) | 5.8 ± 0.4 | 5.7 ± 0.4 | 5.7 ± 0.2 | 5.7 ± 0.3 |
| Follow-up serum K+ (mmol/L) | 4.9 ± 0.7* | 4.9 ± 0.7* | 5.1 ± 0.6* | 4.7 ± 0.6* |
| Daily CPS dose (g/day) | 8.2 ± 3.6 | 7.2 ± 3.6 | 8.7 ± 3.5 | 7.6 ± 3.6 |
| Medication duration (months) | 1.3 ± 0.8 | 4.6 ± 0.8 | 9.2 ± 1.7 | 23.1 ± 10.5 |
| Response (%) | 79.9 | 71.4 | 66.7 | 86.8 |
Values are expressed as mean ± standard deviation.
CPS, calcium polystyrene sulfonate.
*P < 0.001 versus basal serum K+, comparison with the paired t-test.