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Table 3 Alteration of disease parameters after 6 and 12 months of treatment in the entire study population and stratified by diagnosis

From: Results of a hypertension and diabetes treatment program in the slums of Nairobi: a retrospective cohort study

  Mean ± SD baseline 6 months Mean ± SD 6 months (Δ) P value* (95 % CI) Mean ± SD baseline 12 months Mean ± SD 12 months (Δ) P value* (95 % CI)
All patients (n = 237)    (n = 154)   
 SBP (mmHg) ± SD 148.5 ± 28.3 139.4 ± 25.4 (Δ -9.1) <0.001 (141.5-146.4) 150.4 ± 30.3 141.5 ± 25.5 (Δ -8.9) 0.003 (142.7-149.1)
 DBP (mmHg) ± SD 88.0 ± 15.4 82.9 ± 15.3 (Δ -5.1) 0.002 (84.0-86.8) 89.3 ± 16.4 83.2 ± 13.7 (Δ -6.1) <0.001 (84.5-87.9)
 RBG (mmol/L) ± SD 11.3 ± 6.7 11.3 ± 8.8 (Δ -0.0) 0.5308 (10.5-12.1) 10.7 ± 6.1 11.8 ± 6.8 (Δ +1.1) 0.909 (10.4-12.1)
Hypertension only (n = 65)    (n = 33)   
 SBP (mmHg) ± SD 158.2 ± 26.0 136.2 ± 25.9 (Δ -22.0) <0.001 (142.5-152.2) 160.7 ± 32.1 139.3 ± 27.4 (Δ -21.4) 0.003 (142.5-158.1)
 DBP (mmHg) ± SD 94.8 ± 15.1 82.9 ± 15.4 (Δ -11.9) <0.001 (86.1-91.7) 96.9 ± 19.6 84.1 ± 13.9 (Δ -12.8) 0.002 (86.2-95.1)
 RBG (mmol/L) ± SD 6.5 ± 3.3 7.1 ± 4.5 (Δ +0.6) 0.738 (5.7-7.8) 8.4 ± 5.2 10.5 ± 6.9 (Δ +2.1) 0.789 (6.8-11.9)
Diabetes only (n = 69)    (n = 40)   
 SBP (mmHg) ± SD 139.9 ± 30.6 136.0 ± 20.6 (Δ -3.9) 0.192 (133.6-142.4) 140.1 ± 33.7 132.5 ± 23.9 (Δ -7.6) 0.132 (129.6-142.9)
 DBP (mmHg) ± SD 85.5 ± 15.1 82.9 ± 16.6 (Δ -2.6) 0.171 (81.5-86.9) 87.8 ± 15.7 82.5 ± 13.1 (Δ -5.3) 0.058 (81-7-88.4)
 RBG (mmol/L) ± SD 12.6 ± 7.7 11.5 ± 6.4 (Δ -1.1) 0.203 (10.7-13.3) 10.2 ± 6.5 11.5 ± 7.3 (Δ +1.3) 0.774 (9.2-12.6)
Hypertension & diabetes (n = 100)    (n = 80)   
 SBP (mmHg) ± SD 147.7 ± 26.7 143.9 ± 27.8 (Δ -3.8) 0.161 (142.0-149.6) 152.3 ± 26.7 146.7 ± 25.1 (Δ -5.6) 0.092 (145.3-153.6)
 DBP (mmHg) ± SD 85.2 ± 14.6 83.4 ± 14.2 (Δ -1.8) 0.180 (82.3-86.3) 87.3 ± 14.6 83.1 ± 12.7 (Δ -4.2) 0.028 (83.0-87.4)
 RBG (mmol/L) ± SD 11.9 ± 6.2 12.1 ± 10.6 (Δ +0.2) 0.558 (10.7-13.3) 11.6 ± 6.1 12.4 ± 6.8 (Δ +0.8) 0.750 (10.9-13.1)
  1. SBP systolic blood pressure, DBP diastolic blood pressure, RBG random blood glucose SD standard deviation, Δ difference between baseline means and means after 6 or 12 months, 95 % CI 95 % confidence interval
  2. *P value calculated with paired two-tailed T-test after 6 and 12 months in comparison with the corresponding baseline value