Table 1.

Values for various reproductive and personal characteristics among 569 women screened for osteoporosis according to education level

Variable	No Education (Group 1 = 209)	Elementary (Group 2 = 222)	High school (Group 3 = 79)	University (Group 4 = 59)
Menstrual cycle pattern, (%)
Regular cycles	159 (76)	151 (68)	66 (84)	43 (73)
Irregular cycles	50 (24)	71 (22)	13 (16)	16 (27)
Menopausal status, (%)
Natural	171 (82)	189 (85)	72 (91)	40 (69)
Iatrogenic	38 (18)	33 (15)	7 (9)	19 (31)
Premenopausal HRT, (%)
Never use	195 (93)	195 (88)	59 (75)	51 (86)
Ever use	14 (7)	27 (12)	20 (25)	8 (14)
Postmenopausal HRT, (%)
Never use	201 (96)	203 (91)	63 (79)	52 (88)
Ever use	8 (4)	19 (9)	16 (21)	7 (12)
Physical daily activity, (%) Childhood
Inactivity	6 (3)	33 (15)	14 (18)	8 (14)
Mild activity	100 (48)	118 (53)	59 (75)	32 (54)
Serious activity	103 (49)	71 (32)	6 (7)	19 (32)
Adolescent
Inactivity	8 (4)	35 (16)	15 (19)	9 (15)
Mild activity	60 (29)	105 (47)	54 (68)	19 (32)
Serious activity	141 (67)	82 (37)	10 (13)	31 (53)
Adult
Inactivity	56 (27)	83 (37)	38 (48)	22 (37)
Mild activity	94 (45)	97 (44)	36 (46)	21 (36)
Serious activity	59 (28)	42 (19)	5 (6)	16 (26)
Calcium intake, (%)
Adequate	102 (49)	107 (48)	36 (46)	45 (76)*
Inadequate	107 (51)	115 (52)	43 (54)	14 (24)
Smoking, (%)
Never use	203 (97)	185 (83)	59 (75)	40 (69)
< 1 packet	4 (2)	18 (8)	6 (7)	9 (15)
1–2 packet	2 (1)	9 (4)	10 (13)	1 (2)
> 2 packet	-	10 (5)	4 (5)	8 (14)
Coffee, (%)
Never use	117 (56)	102 (46)	43 (54)	20 (34)
2 or below cup	88 (42)	85 (38)	20 (25)	23 (39)
3 or above cup	4 (2)	35 (16)	16 (21)	16 (26)
Alcohol, (%)
Never use	203 (97)	204 (92)	64 (81)	40 (68)
Very rare	2 (1)	12 (5)	10 (13)	14 (24)
Frequently	4 (2)	6 (3)	5 (6)	5 (8)

*Significant different from other groups (p < 0.05).