Table 1. Descriptive statistics for the Tsimane after exclusion (ages 20–69).

Variables	Tsimane Females		Tsimane Males
	Mean (and S.D.) or Percent	n	Mean (and S.D.) or Percent	n
Age	41.3 (14.3)	203	43.6 (15.2)	280
Body weight (kg)	53.4 (9.3)	203	62.4 (7.4)	280
FFM (kg)	39.7 (4.3)	203	52.0 (5.8)	280
Perc. FFM	0.75 (0.08)	203	0.84 (0.05)	280
Distance to town in 10 km	4.4 (2.4)	196	4.2 (2.4)	273
Hemoglobin	12.9 (1.4)	117	14.3 (1.2)	157
Arthritis	11%	133	4%	185
Helminths	51%	92	58%	128
Giardia	38%	92	40%	128
Nonarthritic Pain	54%	133	75%	138
Respiratory Ailments	27%	133	15%	185
Spanish-speaking Ability	17%	271	42%	271
Pregnant	3%	203	–	–

Two-level factors are reported as percentage of the subsample with a given ailment.