A Study on the Association between Low Maternal Serum Magnesium Level and Preterm Labour

Table 2

Demographic characteristics of respondents.

Characteristics	Study patients		𝑃-value
	Case (preterm labour)	Control (term labour)
	𝑁 (%)	𝑁 (%)
Age
16–20	7 (7.0)	13 (13.0)	0.098
21–25	15 (15.0)	17 (17.0)
26–30	33 (33.0)	30 (30.0)
31–35	27 (27.0)	25 (25.0)
36–40	18 (18.0)	15 (15.0)
Mean ± SD (years)	𝟐𝟗.𝟕𝟓±𝟓.𝟐𝟒	𝟐𝟖.𝟔𝟑±𝟓.𝟗𝟐
	Age range = 16–39 years
Parity
Primigravidae	17 (17.0)	22 (22.0)	0.534
Multigravidae	83 (83.0)	78 (78.0)
Marital status
Single	20 (20.0)	19 (19.0)	0.064
Married	80 (80.0)	81 (81.0)
Tribe
Hausa	13 (13.0)	10 (10.0)	0.830
Ibo	25 (25.0)	23 (23.0)
Yoruba	47 (47.0)	51 (51.0)
Others	15 (15.0)	16 (16.0)
Religion
Christianity	62 (62.0)	53 (53.0)	0.106
Islam	33 (33.0)	46 (46.0)
Others	5 (5.0)	1 (1.0)
Social class
Upper	17 (17.0)	14 (14.0)	0.139
Middle	50 (50.0)	57 (57.0)
Lower	33 (33.0)	29 (29.0)
Total	100 (100.0)	100 (100.0)