# Table 2 Results of logistic regression analysis.

# Question Statement/item Factor pvalue Odds ratio 99% confidence interval
1 2 Feeling well prepared prior to donation Donor age (< 30) 0.03 2.11 0.85–5.27
2 3 Preferring phone communication Contact (phone) < 0.0001* 9.16 4.38–19.16
3 4 Assessing communication as sensitive Contact (phone) 0.02 6.04 0.86–42.33
4 4 Assessing communication as sensitive Donor gender (female) 0.02 4.41 0.81–24.04
5 5 Assessing information as sufficient Contact (phone) 0.01 5.30 0.97–29.00
6 7 Feeling grief Population density (< 100) 0.05 2.40 0.77–7.48
7 7 Feeling helplessness Donor gender (female) 0.04 1.76 0.85–3.62
8 8 (P) Often thinking about the family of the recipient Donor gender (female) 0.04 4.83 0.65–35.93
9 8 (P) Often thinking about the family of the recipient Circumstance of recruitment (not related to patient) 0.04 3.34 0.74–14.99
10 8 (P) More often thinking about own family Donor age (≥ 30) 0.03 4.81 0.78–29.54
11 8 Not thinking about it Circumstance of recruitment (not related to patient) 0.01 3.52 1.00–12.36
12 8 Often thinking about the recipient/the family of the recipient Donor gender (female) 0.002 3.03 1.21–7.59
13 8 Often thinking about the recipient/the family of the recipient Anonymous contact with recipient (yes) 0.04 2.67 0.80–8.91
14 8 More often thinking about own family since reception of the news Contact (letter) 0.05 1.85 0.82–4.16
15 8 Wanting to contact DKMS Contact (letter) 0.03 9.68 0.64–146.31
1. All combinations of answers and factors with p values < 0.05 are displayed. Due to multiple testing, only p values < 0.0005 are considered as significant and marked with an asterisk in the table. Examples: Donors who have been contacted by phone significantly more often prefer phone communication than other donors (#2). Female donors more often state to often think about the recipient or his family than male donors but the difference is not regarded as significant (#12). P = Pilot.