From: Establishing reference intervals for electrolytes in newborns and infants using direct ISE analyzer
N | Outlier (Tukey) | Min. value | Max. value | Mean (95% CI) | DAP test | Lower limit (90% CI) | Upper limit (90% CI) | RI | Harris and Boyd | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Na + | Newborns | 60 | No | 126 | 143 | 133.2 | P = 0.157 | 124.3 | 141.4 | 124-141 | Combined RIs are suggested |
(132.1-134.2) | (123.1-125.9) | (139.4-142.8) | |||||||||
Infants | 57 | No | 127 | 143 | 136 | P = 0.129 | 129 | 144.2 | 129-144 | ||
(135–137) | (127.1-130.5) | (142.6-145.5) | |||||||||
Combined | 117 | No | 126 | 143 | 134.5 | P = 0.327 | 126 | 143 | 126-143 | ||
(134–135) | (126–127) | (142–143) | |||||||||
K + | Newborns | 60 | No | 4.7 | 8.0 | 6.20 | P = 0.108 | 3.99 | 8.26 | 4.0-8.3 | Combined RIs are suggested |
(5.94-6.46) | (3.63-4.33) | (7.72-8.63) | |||||||||
Infants | 57 | No | 4.0 | 7.0 | 5.32 | P = 0.090 | 3.66 | 6.72 | 3.7-6.7 | ||
(5.12-5.52) | (3.37-3.98) | (6.39-7.07) | |||||||||
Combined | 117 | No | 4.0 | 8.0 | 5.69 | P = 0.118 | 4.01 | 7.9 | 4.0-7.9 | ||
(5.52-5.87) | (3.95-4.1) | (7.52-8.04) | |||||||||
Cl - | Newborns | 60 | No | 100 | 115 | 105.9 | P = 0.748 | 99.6 | 112.2 | 100-112 | Combined RIs are suggested |
(105.1-106.7) | (98.4-100.8) | (111–113.3) | |||||||||
Infants | 57 | No | 100 | 110 | 104.9 | P = 0.536 | 99.4 | 110.2 | 99-110 | ||
(104.2-105.6) | (98.5-100.3) | (109.2-111.2) | |||||||||
Combined | 117 | No | 100 | 111 | 105.3 | P = 0.39 | 99.7 | 111 | 100-111 | ||
(104.8-105.8) | (99.4-100) | (110.2-111.3) |