Factors associated with crisis pregnancies in Ireland: findings from three nationally representative sexual health surveys

Table 2 Descriptive statistics for the age, contraception and outcome variables for those who experienced a recent crisis pregnancy at the time of the crisis pregnancy across three time periods

	ICCP-2003 (n = 97)	ISSHR (2006) (n = 150)	ICCP-2010 (n = 89)	Chi square
	n (unweighted %) (weighted %)	n (unweighted %) (weighted %)	n (unweighted %) (weighted %)	χ²(df) (φ)
Age at CP				n/s
15-19 years	26 (26.8) (25.0)	27 (18.0) (22.1)	15 (16.9) (19.2)
20-24 years	19 (19.6) (32.1)	57 (38.0) (33.2)	20 (22.5) (19.5)
25-29 years	22 (22.7) (18.4)	25 (16.7) (13.0)	19 (21.3) (19.6)
30-34 years	16 (16.5) (13.3)	18 (12.0) (12.3)	23 (25.8) (21.8)
35 years and older	14 (14.4) (11.3)	23 (15.3) (19.4)	12 (13.5) (19.9)
Contraception used at CP ^a				n/s^b
No contraception	49 (50.5) (50.3)	-	53 (59.6) (58.2)
Low efficacy	28 (28.9) (26.0)	-	23 (25.8) (24.1)
Medium efficacy	16 (16.5) (19.5)	-	11 (12.4) (14.9)
High efficacy	2 (2.1) (0.9)	-	1 (1.1) (2.0)
Missing	2 (2.1) (3.2)	-	1 (1.1) (0.8)
Outcomes				n/s
Parenthood	69 (71.1) (64.3)	87 (58.0) (58.9)	62 (69.7) (73.9)
Abortion	16 (16.5) (20.5)	29 (19.3) (19.0)	23 (25.8) (22.8)
Missing	12 (12.4) (15.2)	34 (22.7) (22.1)	4 (4.5) (3.3)

Note. Chi square analysis conducted on unweighted data. n = sample size. χ² = chi square statistic. df = degrees of freedom. Φ = Phi effect size. n/s denotes the difference was not significant, ^aThe ISSHR survey did not ask respondents about the contraception they used at the time of the crisis pregnancy, ^bThe high efficacy contraception variable was not included in this analysis as the expected count was less than 5 and therefore it violated one of the assumptions of the Chi² test.

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