TABLE 10.

Linear regression results from alcohol and smoking exposure predicting mean fetal movement in 2F.

Exposure category	Both sites			South Africa			Northern Plains
	N	Effect size Mean difference (SE)	p val	N	Effect size Mean difference (SE)	p val	N	Effect size Mean difference (SE)	p val
No alcohol	2774	/	/	1767	/	/	1007	/	/
Alcohol low quit early	1362	−0.0861 (0.0392)	0.028	682	−0.0176 (0.0527)	0.738	680	−0.172 (0.06)	0.004
Alcohol high quit early	291	0.0486 (0.0723)	0.502	150	0.1008 (0.0993)	0.310	141	−0.049 (0.1329)	0.713
Alcohol low continuous	530	−0.0641 (0.0562)	0.254	496	−0.0341 (0.0597)	0.568	34	−0.1731 (0.2017)	0.391
Alcohol moderate continuous	553	0.0318 (0.0566)	0.574	457	0.0596 (0.063)	0.344	76	−0.0904 (0.1901)	0.635
Alcohol high continuous	275	0.0112 (0.0754)	0.137	257	0.1433 (0.0799)	0.073	18	−0.1994 (0.4537)	0.66
No smoking	3300	/	/	1634	/	/	1666	/	/
Smoking quit early	188	0.1095 (0.087)	0.208	100	0.2179 (0.1199)	0.069	88	−0.0455 (0.128)	0.722
Smoking low continuous	1394	−0.0258 (0.0415)	0.535	1257	−0.0172 (0.0455)	0.705	137	−0.0624 (0.1102)	0.571
Smoking moderate/high continuous	883	−0.1258 (0.0487)	0.01	818	−0.1047 (0.0526)	0.047	65	−0.2535 (0.1476)	0.086

SE: standard error; P val: p-values; N = number of participants in the group. Bold and italicized values represent p-value ≤ 0.05.