I would prefer to be approached to discuss participating in this study | Before my baby was born | After my baby was born | P values* |
n (%) | n (%) | ||
<0.001 | |||
Study 1a† | 441 (73.5) | 159 (26.5) | |
Study 2b | 481 (80.2) | 119 (19.8) | |
Study 3a | 415 (69.2) | 185 (30.8) | |
Study 4a | 446 (74.3) | 154 (25.7) |
*From Cochran’s Q test.
†Studies with different superscript letters are significantly different based on McNemar post hoc tests with Bonferroni correction.