Table 1.
Characteristics of population based on male caffeine and alcohol intake
| Alcohol (g/day) | Caffeine (mg/day) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| < 3.0 | 3–9.9 | 10–18.9 | ≥19 | P-value | <67 | 67–160.9 | 161–271.9 | ≥272 | p-value | |
| n | 47 | 40 | 41 | 43 | 43 | 42 | 44 | 42 | ||
| Male partner characteristics | ||||||||||
| Alcohol, g/day* | 1.3(1.0) | 7.1(1.9) | 14.1(2.2) | 37.4(22.7) | <0.01 | 10.3(24.0) | 15.4(16.4) | 14.0(11.2) | 19.5(17.5) | 0.03 |
| Caffeine, g/d* | 119.3(126.7) | 169.7(114.4) | 223.7(123.1) | 231.0(137.8) | <0.01 | 29.4(20.5) | 115.1(17.5) | 232.4(32.4) | 361.3(84.0) | <0.01 |
| Age, years* | 37.8(5.8) | 36.4(5.1) | 35.9(4.1) | 36.6(4.8) | 0.21 | 37.4(5.9) | 35.2(4.8) | 37.5(4.2) | 36.7(4.9) | 0.93 |
| BMI* | 27.5(4.6) | 26.8(4.1) | 26.9(3.0) | 26.8(3.3) | 0.47 | 27.6(4.0) | 26.5(3.7) | 27.0(3.6) | 26.9(3.9) | 0.56 |
| Race, n(%) | 0.17 | 0.92 | ||||||||
| Caucasian | 36(77) | 33(83) | 38(93) | 38(88) | 36(84) | 37(88) | 37(84) | 35(83) | ||
| Other | 11(23) | 7(18) | 3(7) | 5(12) | 7(16) | 5(12) | 7(16) | 7(17) | ||
| Smoking, n(%) | <0.01 | 0.09 | ||||||||
| Never smoker | 37(79) | 26(65) | 27(66) | 17(40) | 30(70) | 30(71) | 27(61) | 20(48) | ||
| Current or Past smoker | 10(21) | 14(35) | 14(34) | 26(60) | 13(30) | 12(29) | 17(39) | 22(52) | ||
| Total calories* | 1835(633) | 1941(580) | 2058(499) | 2369(667) | <0.01 | 1930(664) | 2087(644) | 1916(545) | 2267(615) | 0.05 |
| Total fata | 31.4(7.9) | 30.8(5.2) | 33.7(4.8) | 31.5(5.9) | 0.45 | 32.0(7.5) | 32.1(5.7) | 31.8(5.4) | 31.5(6.3) | 0.70 |
| Saturated fata | 10.4(3.1) | 10.2(2.0) | 11.2(1.9) | 10.4(2.2) | 0.46 | 10.4(2.9) | 10.7(2.1) | 10.6(2.3) | 10.4(2.3) | 0.97 |
| Monounsaturated fata | 12.1(3.6) | 11.9(2.6) | 13.4(2.5) | 12.7(3.3) | 0.15 | 12.6(3.3) | 12.6(3.2) | 12.5(2.7) | 12.4(3.3) | 0.81 |
| Polyunsaturated fata | 6.1(1.8) | 5.9(1.2) | 6.1(1.6) | 5.7(1.6) | 0.44 | 6.2(1.8) | 5.9(1.5) | 5.9(1.6) | 5.9(1.4) | 0.41 |
| Total carbohydratesa | 53.4(9.9) | 51.3(7.4) | 46.3(5.2) | 43.6(7.0) | <0.01 | 50.6(10.3) | 48.3(8.3) | 48.3(6.8) | 47.7(8.4) | 0.14 |
| Total proteina | 16.7(3.3) | 16.8(2.9) | 16.6(2.4) | 15.2(2.5) | 0.02 | 16.2(3.0) | 16.3(2.6) | 16.5(2.8) | 16.3(3.2) | 0.72 |
| Prudent pattern score | 0.007(0.94) | 0.039(0.97) | −0.060(1.11) | −0.031(0.91) | 0.75 | −0.037(1.14) | −0.191(0.85) | −0.102(0.97) | 0.290(0.97) | 0.11 |
| Western pattern score | −0.497(0.89) | −0.198(0.74) | 0.209(0.82) | 0.698(1.16) | <0.01 | −0.206(0.99) | 0.142(1.10) | −0.136(0.79) | 0.385(1.10) | 0.03 |
| Female partner characteristics | ||||||||||
| Alcohol, g/day | 4.1(5.6) | 6.3(8.1) | 9.0(6.8) | 17.7(13.1) | <0.01 | 10.2(10.4) | 9.1(8.4) | 8.2(7.3) | 11.9(14.9) | 0.64 |
| Caffeine, mg/day | 113.0(103.5) | 129.7 (100.3) | 117.6(75.8) | 167.9(155.9) | 0.10 | 114.7 (113.2) | 111.9(76.5) | 149.9(137.5) | 147.2(117.1) | 0.17 |
| Age, years | 36.5(4.0) | 36.0(3.3) | 34.7(4.5) | 35.2(3.4) | 0.09 | 35.3(3.6) | 35.4(4.4) | 36.2(3.6) | 35.1(4.1) | 0.91 |
| BMI | 24.2(4.6) | 22.3(2.5) | 24.0(4.1) | 23.8(3.6) | 0.98 | 22.8(3.0) | 22.7(3.6) | 24.6(4.2) | 24.3(4.1) | 0.04 |
| Infertility Diagnosis, n(%) | 0.22 | 0.21 | ||||||||
| Diminished ovarian reserve | 7(15) | 3(8) | 4(10) | 1(2) | 6(14) | 4(10) | 3(7) | 2(5) | ||
| Endometriosis | 4(9) | 2(5) | 1(2) | 1(2) | 2(5) | 1(2) | 2(5) | 3(7) | ||
| Male factor | 16(34) | 13(33) | 11(27) | 12(28) | 16(37) | 14(33) | 9(20) | 13(31) | ||
| Ovulatory | 3(6) | 3(8) | 4(10 | 9(21) | 0(0) | 8(19) | 8(18) | 3(7) | ||
| Tubal factor | 6(12.8) | 2(5.0) | 2(4.9) | 2(4.7) | 5(12) | 2(5) | 2(5) | 3(7) | ||
| Unexplained | 11(23) | 16(40) | 19(46) | 18(42) | 14(33) | 12(29) | 20(45) | 18(43) | ||
| Uterine factor | 0(0) | 1(3) | 0(0) | 0(0) | 0(0) | 1(2) | 0(0) | 0(0) | ||
*
mean (standard deviation)
a
% total calories, mean (standard deviation)