TABLE 4.
The association between reproductive and lifestyle characteristics and accessing medical care for infertility in the Mexican teacher’s cohort among women reporting a history of infertility.
| Charactersitics | Did not access care for infertility 7,110 (36.3%) |
Accessed medical care for infertility 12,470 (63.7%) |
Prevalence ratio (95% CI) Accessing care for infertility |
Multivariable adjusted prevalence ratioa (95% CI) |
|---|---|---|---|---|
| Hormonal contraceptive use | ||||
| Never | 3,820 (33.5) | 7,597 (66.5) | 1.00 (Ref) | 1.00 (Ref) |
| Ever | 2,764 (39.6) | 4,210 (60.4) | 0.91 (0.89–0.93) | 0.91 (0.89–0.93) |
| Parity in 2008 | ||||
| Nulliparous | 587 (19.9) | 2,358 (80.1) | 1.00 (Ref) | 1.00 (Ref) |
| 1 | 1,171 (32.7) | 2,413 (67.3) | 0.84 (0.82–0.87) | 0.85 (0.82–0.87) |
| 2 | 2,139 (38.6) | 3,396 (61.4) | 0.77 (0.75–0.79) | 0.78 (0.76–0.80) |
| 3+ | 3,062 (42.9) | 4,076 (57.1) | 0.71 (0.69–0.73) | 0.74 (0.72–0.76) |
| History of smoking | ||||
| Never | 5,085 (35.6) | 9,185 (64.4) | 1.00 (Ref) | 1.00 (Ref) |
| Ever | 1,566 (36.0) | 2,779 (64.0) | 0.99 (0.97–1.02) | 1.00 (0.98–1.03) |
| Alcoholic drinks/d | ||||
| 0 | 2,362 (36.1) | 4174 (63.9) | 1.00 (Ref) | 1.00 (Ref) |
| <0.1 | 2,780 (34.4) | 5,291 (65.6) | 1.03 (1.00–1.05) | 1.02 (1.00–1.05) |
| ≥0.1 | 1,111 (35.2) | 2,047 (64.8) | 1.01 (0.98–1.05) | 1.02 (0.99–1.05) |
| Type 2 diabetes | ||||
| No | 6,577 (36.2) | 11,593 (63.8) | 1.00 (Ref) | 1.00 (Ref) |
| Yes | 533 (37.8) | 877 (62.2) | 0.97 (0.93–1.02) | 1.00 (0.96–1.04) |
| Vigorous Physical Activity at the age of 18 y | ||||
| ≤3 h/wk | 1,422 (36.0) | 2,525 (64.0) | 1.00 (Ref) | 1.00 (Ref) |
| >3 h/wk | 3,997 (33.2) | 8,026 (66.8) | 1.04 (1.02–1.07) | 1.04 (1.01–1.06) |
| Age at menarche | ||||
| <12 | 1,690 (34.3) | 3,233 (65.7) | 1.00 (Ref) | 1.00 (Ref) |
| 12 | 1,931 (35.0) | 3,584 (65.0) | 0.99 (0.96–1.02) | 1.00 (0.97–1.03) |
| 13 | 1,391 (36.4) | 2,436 (63.7) | 0.97 (0.94–1.00) | 0.98 (0.95–1.01) |
| ≥14 | 1,993 (39.5) | 3,053 (60.5) | 0.92 (0.89–0.95) | 0.95 (0.92–0.98) |
| Linear trend | <0.0001 | 0.0002 | ||
| BMI (kg/m2) in 2008 | ||||
| <25 | 1,852 (35.1) | 3,429 (64.9) | 1.00 (Ref) | 1.00 (Ref) |
| 25 to <30 | 2,781 (37.0) | 4,738 (63.0) | 0.97 (0.95–1.00) | 0.99 (0.96–1.01) |
| ≥30 | 1,753 (35.4) | 3,189 (64.5) | 0.99 (0.97–1.02) | 1.01 (0.98–1.04) |
| Linear trend | 0.88 | 0.34 | ||
| Somatotype in young adolescenceb | ||||
| 1 | 1,002 (35.3) | 1,838 (64.7) | 1.00 (Ref) | 1.00 (Ref) |
| 2 | 1,936 (34.4) | 3,686 (65.6) | 1.01 (0.98–1.05) | 1.01 (0.98–1.05) |
| 3 | 2,006 (36.8) | 3,451 (63.2) | 0.98 (0.94–1.01) | 0.98 (0.95–1.01) |
| ≥4 | 1,626 (35.5) | 2,955 (64.5) | 1.00 (0.96–1.03) | 1.00 (0.96–1.03) |
| Linear trend | 0.28 | 0.24 | ||
| BMI at the age of 18 y | ||||
| <18.5 | 1,099 (35.8) | 1,967 (64.2) | 1.00 (Ref) | 1.00 (Ref) |
| 18.5 to <21 | 2,018 (35.8) | 3,615 (64.2) | 1.00 (0.97–1.03) | 1.00 (0.97–1.03) |
| 21 to <25 | 2,164 (35.6) | 3,915 (64.4) | 1.00 (0.97–1.04) | 1.00 (0.97–1.04) |
| ≥25 | 556 (34.1) | 1,074 (65.9) | 1.03 (0.98–1.07) | 1.02 (0.97–1.06) |
| Linear trend | 0.25 | 0.45 | ||
| Somatotype (25–30 y) | ||||
| 1–3 | 1,659 (35.2) | 3,055 (64.8) | 1.00 (Ref) | 1.00 (Ref) |
| 4 | 1,714 (35.9) | 3,064 (64.1) | 0.99 (0.96–1.02) | 0.98 (0.96–1.01) |
| 5 | 1,132 (35.6) | 2,047 (64.4) | 0.99 (0.96–1.03) | 0.99 (0.95–1.02) |
| ≥6 | 2,060 (35.8) | 3,699 (64.2) | 0.99 (0.96–1.02) | 0.98 (0.95–1.01) |
| Linear trend | 0.74 | 0.23 |
a
Multivariable models adjusted for age (continuous), history of hormonal contraceptive use, teaching in a rural school, and speaking an indigenous language
b
Young adolescence defined as 2 years after the first menstrual period