Table 2 The rotated factor loading matrix of 10-item MANJS

Factor 1: Physical and mental reaction

 c3 I loss sleep at night or have nightmares because I am worried about my child’s jaundice.

0.67

0.26

 c7 I feel easily irritated until my child’s jaundice subsides.

0.83

0.25

 c8 I feel nervous until my child’s jaundice subsides.

0.87

0.25

 c9 I feel restless until my child’s jaundice subsides.

0.92

0.18

 c10 I have no appetite until my child’s jaundice subsides.

0.91

0.14

 c11 I can’t concentrate on things because I am worried about my jaundiced child.

0.88

0.14

Factor 2: Behavioral manifestation

 c1 I am afraid that jaundice will threaten my child’s health.

0.28

0.67

 c4 I go online for information about neonatal jaundice or keep consulting doctors and friends.

0.14

0.86

 c5 I observe the child’s every move and repeatedly confirm whether the behavior was related to jaundice.

0.15

0.89

 c6 I keep an eye on the child’s jaundice level and double check that it is within the normal range.

0.19

0.84

 Eigenvalue

5.49

1.95

 Variance explained (%)

54.87

19.53

 Cumulative percentage (%)

54.87

74.39