Table 3. Comparison of Bilistick System (BS) reader#1 and #2 from available results (n=82).
| Variables * | All (n=82) | Reader #1
(n=36) |
Reader #2
(n=46) |
p-value |
|---|---|---|---|---|
| Newborn characteristics | ||||
| Gestational age, weeks | 39 [38-40] | 39 [38-40] | 39 [38-40] | 0.359 |
| Age, hours | 127 [70-169] | 127 [82-221] | 125 [68-168] | 0.824 |
| Haematocrit, % | 53 [49-55] | 50 [49-54] | 54 [52-56] | 0.046 |
| Environment characteristics | ||||
| Room temperature, °C | 29 [28-30] | 28 [27-31] | 29 [29-30] | 0.782 |
| Room humidity, % | 69 [58-78] | 58 [52-65] | 76 [69-81] | <0.001 |
| Humidity level, n (%) | <0.001 | |||
| Normal | 52 (63.4) | 33 (91.7) | 19 (41.3) | |
| High | 30 (36.6) | 3 (8.3) | 27 (58.7) | |
| Bilirubin measurement characteristics | ||||
| BS bilirubin, µmol/l | 168 [138-218] | 187 [136-226] | 164 [138-186] | 0.266 |
| Bilirubinometer bilirubin, µmol/l | 192 [150-229] | 214 [151-251] | 181 [150-205] | 0.045 |
| PCC of bilirubin values between BS and
routine laboratory bilirubinometer, r (95% CI) |
0.87 (0.77-0.93) | 0.97 (0.93 - 0.98) | 0.71 (0.53 - 0.83) |
*Data presented as median [Interquartile range] unless otherwise stated. PCC, Perason’s correlation coefficient.