The combination matters - distinct impact of lifestyle factors on sperm quality: a study on semen analysis of 1683 patients according to MSOME criteria

Table 1 Population and lifestyle characteristics of patients

	Number of patients	Mean ± s.d.	Range
Total number of patients	1683
Mean age (years)	1683	40.4 ± 5.9	25-72
BMI (kg/m ² )	1678	26.1± 3.4	17-48
Period of sexual abstinence (days)	1675	3.2 ± 2.2	0-35
Ejaculatory frequency (ejaculations per month)	1658	6.7 ± 3.4	0-24
Working hours (h)	1589	9.4 ± 1.4	0-15
Sleeping/day (h)	1591	7.1 ± 0.8	4-12
Coffee intake (cups/day)	1321	2.0 ± 1.5	0-12
Meals intake/day	1564	2.7 ± 0.6	1-5
Fruit/vegetables intake (portion/day)	1499	1.3 ± 0.8	0-5
Fluid intake (liter/day)	1569	2.1 ± 0.7	0.5-6
Smoking: Yes (Range: cigarettes/day)	215/1438 ^a	13 ± 8.4	0.5-50 ^b
Endurance sports (h/week)	899/1454 ^a	2.6 ± 2.1	0.5-22
Endurance sports (times/week)	712/1421 ^a	2.3 ± 1.5	0.5-14
Athletic sports (h/week)	286/1514 ^a	2.4 ± 1.2	0.5-14
Athletic sports (times/week)	275/1505 ^a	2.1 ± 1.1	0.5-7

Values were expressed as mean ± s.d. (standard deviation).
Number of patients in this group/patients answered this question. ^a Number of patients affirmed this question. ^b cigarettes/ day.

ISSN: 1477-7827