Protocol of the Low Birth Weight South Asia Trial (LBWSAT), a cluster-randomised controlled trial testing impact on birth weight and infant nutrition of Participatory Learning and Action through women’s groups, with and without unconditional transfers of fortified food or cash during pregnancy in Nepal

Table 1 Sample size for birth weight, at 80 % power, 5 % significance level, and intracluster correlation coefficient 0.01

Difference between arms, g	Effective sample size per arm	Number of VDCs per arm, 163 births per cluster	Number of VDCs per arm, 111 births per cluster
75	470	8	9
50	1056	17	20
25	4223	68	80

ISSN: 1471-2393