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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Evol Hum Behav. 2017 Aug 24;38(6):714–728. doi: 10.1016/j.evolhumbehav.2017.08.001

Table 2.

Summary statistics of the explanatory variables by population. Cohen’s d is the effect size of the difference between the two populations; p is the result of a Wilcoxon rank test. Sorted by the absolute value of d. See the Methods section for the definition of each variable.

Rural farmers Jenu Kuruba Effect size
Variable N Min Max Mean SD N Min Max Mean SD d p
Nausea or vomiting (0=No; 1=Yes) 72 0.0 1.0 0.78 0.42 30 0.0 1.00 0.77 0.43 0.027 0.91
Proportion of disliked foods (31 photos) 72 0.42 0.9 0.66 0.11 29 0.29 0.94 0.68 0.14 −0.120 0.46
Age (years) 72 18.00 33.0 22.00 3.10 30 18.00 30.00 23.00 2.90 −0.130 0.41
Months pregnant 72 3.00 9.0 6.20 1.90 30 2.50 9.00 5.80 1.70 0.220 0.27
Household size 72 3.00 30.0 5.70 3.60 30 3.00 14.00 6.50 2.60 −0.250 0.04
Perceived susceptibility to disease score 72 1.00 4.0 2.20 0.64 30 1.00 4.00 2.50 0.73 −0.330 0.13
Total dietary pressure 72 0.00 3.0 0.76 0.81 30 0.00 3.00 1.10 0.96 −0.400 0.10
Parity 72 0.00 2.0 0.62 0.70 30 0.00 2.00 0.93 0.83 −0.420 0.08
Mean number of free-listed food aversions 72 0.00 5.0 1.80 1.20 30 0.00 4.00 0.93 1.20 0.710 1.1e-03
Education (years) 72 0.00 15.0 8.80 3.60 30 0.00 12.00 6.00 3.70 0.780 6.4e-04
Sanitation score 72 −4.90 2.6 0.50 2.00 30 −4.90 2.60 −1.20 1.80 0.880 8.5e-05
Food insecurity score 72 0.00 6.0 1.20 2.10 30 0.00 6.00 3.70 2.50 −1.100 1.8e-05
Total dietary advice 72 1.00 4.0 2.70 0.65 30 0.00 4.00 1.90 0.88 1.100 9.6e-06
Mean number of free-listed food avoidances 72 0.00 7.0 4.10 1.50 30 0.00 5.00 1.30 1.40 1.900 0.0e+00