Antioxidant-rich dietary intervention for improving asthma control in pregnancies complicated by asthma: study protocol for a randomized controlled trial

Table 1 Study endpoints and procedures for the intervention and control groups

Week of gestation	12	14 (n = 168)	16	18	20	22	24	26	28	30 (n = 104)
Endpoint	Recruit	Run-in		Randomization and intervention						End
Clinic
Height		X
Weight		X		X			X			X
Blood pressure		X		X			X			X
Fetal scan				X			X			X
FFQ		X
24-hr recall		X		X			X			X
Blood		X		X			X			X
AME		X		X
ACQ6	X	X		X			X			X
F_ENO		X		X			X			X
Questionnaires^a				X			X			X
Food group count	X			X			X			X
Telephone
ACQ6			X		X	X		X	X
Food group count			X		X	X		X	X
24-hr recall			X		X	X		X	X

FFQ, food frequency questionnaire; AME, asthma management and education; ACQ6, asthma-control questionnaire 6; F_ENO, fraction of exhaled nitric oxide. ^aQuestionnaires include: eating habits subscale, common-cold questionnaire, passive-smoking questionnaire and physical-activity questionnaire.

ISSN: 1745-6215