Characteristics | Low prenatal stress | High prenatal stress | p-value |
Age years | 27.79±0.43 | 27.75±0.48 | 0.82 |
Female/male# n/n | 16/14 | 4/6 | 0.47 |
FEV1 % predicted | 96.43±14.46 | 95.35±9.39 | 0.75 |
Height cm | 175.48±0.11 | 173.70±0.10 | 0.64 |
Weight kg | 70.97±10.82 | 67.92±12.22 | 0.46 |
Current trait anxiety¶ | 36.62±8.59 | 38.11±6.57 | 0.64 |
Current state anxiety¶ | 32.14±7.98 | 33.89±8.24 | 0.46 |
Current dyspnoea catastrophising+ | 10.46±11.10 | 9.11±10.88 | 0.88 |
Current somatic symptoms§ | 20.75±3.03 | 20.00±2.24 | 0.50 |
Maternal trait anxiety at 12–22 weeks of pregnancy¶ | 33.00±5.48 | 49.07±4.80 | <0.001 |
Duration of pregnancy days | 272.43±10.88 | 273.80±9.87 | 0.73 |
Birthweight g | 3285.33±474.67 | 3451.00±516.75 | 0.36 |
Maternal smoking during pregnancy number of cigarettes per day | 0.57±1.92 | 1.20±1.87 | 0.23 |
Maternal caffeine consumption during pregnancy mg·day−1 | 292.89±214.65 | 240.79±85.83 | 0.46 |
Maternal alcohol consumption during pregnancy mg·day−1 | 1.32±1.76 | 2.93±3.42 | 0.29 |
Data are presented as mean±sd, unless otherwise stated. Whereas trait anxiety ratings of the mothers during the 12th to 22nd week of pregnancy are significantly different between groups, there are no significant group differences in other characteristics. FEV1: forced expiratory volume in 1 s. #: analysed with chi-squared-test; ¶: measured with State-Trait Anxiety Inventory (STAI); +: measured with Breathlessness Catastrophizing Scale (BCS); §: measured with PHQ-15 (Patient Health Questionnaire).