Table 1.

Characteristics for participants (n = 22)

Characteristic
Age (years), average (SD), range	34.7 (8.8), 21–49
BMI (kg/m2), average (SD), range	24.3 (3.6), 20.3–37.2a
Contraceptive method, n (%)
none	11 (50.0)
non-hormonal	11 (50.0)
not mentioned /	7 (31.8)
condom /	3 (13.6)
copper intra uterine device	1 (4.5)
Regular menstruation, n (%)	19 (86.4)
Underlying diseases, n (%)	4 (18.2)bb
Continuous medications, n (%)	4 (18.2)ccc
Smoking, n (%)	0 (0.0)

^aBMI > 30: two participants

^bbnone were affecting temperature nor menstrual cycle

^cccdepression medication (one participant); others did not have medications with potential effect on temperature or cycle