Table 1 Socio-demographic factors and health risk factors associated with hormonal contraception use
From: Past oral contraceptive use and self-reported high blood pressure in postmenopausal women
Characteristics | n (% column) | % HC | Odds ratio†(99% CI) | |
|---|---|---|---|---|
Country of origin | Australia | 25,664 (75) | 79 | 1.0 |
Other | 8,348 (24) | 64 | 0.5 (0.4 to 0.5) | |
Income | <$30 K | 10,294 (30) | 64 | 1.0 |
$30 K – $70 K | 8687 (25) | 83 | 2.2 (2.1 to 2.4) | |
$70 K+ | 7,037 (21) | 89 | 3.7 (3.4 to 4.0) | |
Did not disclose | 8,271 (24) | 69 | 1.2 (1.1 to 1.3) | |
Body Mass Index (BMI) | <25 | 15,561 (45) | 75 | 1.0 |
25 to 29 | 10,410 (30) | 76 | 1.1 (1.1 to 1.2) | |
+30 | 5,731 (17) | 77 | 1.4 (1.3 to 1.5) | |
Family History HBP | No | 16,994 (50) | 71 | 1.0 |
Yes | 17,295 (50) | 79 | 1.3 (1.3 to 1.4) | |
Smoking status | Never | 22,626 (66) | 72 | 1.0 |
Past | 9,483 (28) | 82 | 1.5 (1.4 to 1.6) | |
Current | 2,040 (6) | 81 | 1.9 (1.7 to 2.2) | |
Alcohol (drinks/week) | 0 | 13,137 (38) | 65 | 1.0 |
1-5 | 9,276 (27) | 81 | 1.7 (1.6 to 1.8) | |
6-10 | 6,889 (20) | 82 | 1.7 (1.6 to 1.9) | |
11+ | 4,335 (13) | 86 | 1.9 (1.7 to 2.1) | |
Physical activity | Insufficient | 10,071 (29) | 66 | 1.0 |
Sufficient | 24,218 (71) | 79 | 1.6 (1.5 to 1.7) | |
MHT use | No | 21,531 (63) | 42 | 1.0 |
Yes | 12,422 (36) | 85 | 2.3 (2.2 to 2.4) | |
Number of children | 1 | 3,580 (10) | 71 | 1.0 |
2 | 13,772 (40) | 82 | 1.5 (1.4 to 1.7) | |
3 | 10,184 (30) | 78 | 1.3 (1.1 to 1.4) | |
4+ | 6,753 (20) | 63 | 0.7 (0.6 to 0.8) | |
Breastfed | No | 3,986 (12) | 72 | 1.0 |
Yes | 29,889 (87) | 76 | 1.1 (1.0 to 1.1) | |
Age at menopause (years) | mean ± SD | 49.9 ± 4.5 | −0.01(−0.01 to −0.001)* | |