Table.
Results of questionnaire survey of 34 women during second trimester of pregnancy according to sex of baby delivered. Values are numbers of women in each group
| Worse
|
Same
|
Better
|
χ2 (95% CI)* | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Boys | Girls | Boys | Girls | Boys | Girls | ||||
| Cough | 5 | 7 | 7 | 8 | 6 | 1 | 3.87 (−48% to 16%)† | ||
| Shortness of breath | 5 | 13 | 7 | 3 | 6 | 0 | 9.72 (−83% to −23%)‡ | ||
| Nocturnal waking | 6 | 10 | 5 | 5 | 7 | 1 | 5.37 (−8% to 62%)¶ | ||
| General state of asthma | 5 | 9 | 5 | 6 | 8 | 1 | 6.3 (−4% to 60%)¶ | ||
| Amount of drug treatment | 8 | 7 | 4 | 5 | 6 | 4 | 0.28 (−33% to 34%) | ||
| Frequency of drug treatment | 6 | 7 | 7 | 8 | 5 | 1 | 2.7 (−22% to 44%) | ||
| Visits to doctor | 3 | 5 | 10 | 11 | 5 | 0 | 3.84 (−15% to 43%)† | ||
*
Comparison of proportion of women who were worse with proportion who were not worse for boys and girls; 95% confidence interval given for difference in proportions.
†
P=0.05.
‡
P<0.01.
¶
P<0.05.