Methodological challenges in following up patients of a hospital child protection team: is there a recruitment bias?

Table 4 Frequencies for primary contact in participating and non-participating groups

Variable	Complete participation	Telephone interview	Refusal	χ ² test
	(n = 42)	(n = 39)	(n = 50)	χ ² (df)	p
Primary contact (%)
Mother	34 (81)	33 (85)	30 (60)	1.60 (2)	0.450
Father	4 (10)	6 (15)	8 (16)
Other person¹	4 (10)	0 (0)	12 (24)

Note. Percentages are added in columns; ¹ the "other person" category was excluded from χ²test, as too many cell counts were below 5.

ISSN: 1753-2000