Comparison of anti-Ro/La-positive (n = 36) and anti-Ro/La-negative (n = 9) CHB.
| Ro/La-positive | Ro/La-negative | Method | p* | |
|---|---|---|---|---|
| Total deaths (%) | 10 (27.78) | 3 (33.33) | Fisher | 0.384** |
| Male/female | 11/25 | 4/5 | Fisher | 0.454 |
| Mean gestational age at detection, wks | 23.03 ± 3.90 | 30.56 ± 7.30 | U test | 0.005 |
| Mean lowest fetal HR (bpm) | 57.17 ± 11.92 | 62.89 ± 24.93 | U test | 0.628 |
| Mean gestational age at delivery, wks | 34.67 ± 3.41 | 35.67 ± 3.53 | t test | 0.400 |
| Mean weight at birth, g | 2168.67 ± 606.61 | 2567.78 ± 659.05 | t test | 0.098 |
| Mean length at birth, cm | 38.16 ± 8.15 | 44.44 ± 5.98 | U test | 0.073 |
| Mean Apgar 1 min | 7.63 ± 2.24 | 7.44 + 1.24 | U test | 0.241 |
| Mean Apgar 5 min | 8.71 ± 1.52 | 8.78 ± 1.00 | U test | 0.433 |
| Mean HR at birth (bpm) | 59.20 ± 21.13 | 70.67 ± 27.82 | U test | 0.165 |
| Incomplete AV block at end of followup (%) | 1 (2.78) | 4 (44.44) | Fisher | 0.004 |
| AV block complete in utero (%) | 34 (94.44) | 3 (33.33) | Fisher | 0.000 |
| AV block detected at birth (%) | 0 | 3 (33.33) | Fisher | 0.006 |
| Pacemaker (%) | 26 (72.22) | 6 (66.67) | Fisher | 0.704 |
| Mean age at pacemaker insertion, days | 454.12 ± 1056.89 | 87.83 ± 142.93 | U test | 0.497 |
| Asymptomatic mothers (%) | 11 (30.55) | 8 (88.89) | Fisher | 0.002 |