Low serum secretory immunoglobulin A level and sense of coherence score at an early gestational stage as indicators for subsequent threatened premature birth

Table 2 Scores of SPS, SOC and the level of s-IgA according to age or birth history

Variable	Period	Age, years (n)				Birth history (n)
Variable	Period	≤24 (9)	≥25, ≤34 (51)	≥35 (12)	p value	Primipara (36)	Multipara (36)	p value
SPS (score)	The first half of pregnancy	23.4 ± 12.2	22.7 ± 10.3	24.5 ± 10.3	0.864^a	24.1 ± 10.5	22.1 ± 10.4	0.415^b
SPS (score)	The latter half of pregnancy	15.7 ± 7.6	19.5 ± 12.0	28.6 ± 9.2	0.152^a	19.5 ± 10.3	21.7 ± 13.0	0.584^b
SOC (score)	The first half of pregnancy	53.6 ± 13.5	61.2 ± 10.2	61.6 ± 11.2	0.099^a	58.5 ± 11.6	62.9 ± 10.5	0.392^b
SOC (score)	The latter half of pregnancy	54.7 ± 6.6	60.8 ± 9.8	57.0 ± 17.0	0.495^a	57.9 ± 12.0	61.1 ± 9.8	0.392^b
s-IgA (μg/ml)	The first half of pregnancy	13.9 ± 4.1	15.6 ± 4.8	16.2 ± 6.3	0.577^c	15.1 ± 6.0	15.8 ± 3.8	0.596^d
s-IgA (μg/ml)	The latter half of pregnancy	21.0 ± 5.5	22.5 ± 8.7	21.6 ± 5.7	0.886^c	21.0 ± 6.7	23.2 ± 8.7	0.330^d

SPS stress perception scale, SOC sense of coherence, s-IgA secretory immunoglobulin A
Values are given as the mean ± SD
^ap value by one-way analysis of variance
^bp value by Student’s t test
^cp value by Kruskal–Wallis H test
^dp value by Mann–Whitney U test

ISSN: 1347-4715