Table 1 Descriptive statistics comparing exposure and outcome data across females and males

Age (years)

94,327

30.20 (4.69)

70,858

30.25 (4.64)

74,327

32.78 (5.40)

49,979

32.75 (5.28)

BMI (kg/m²)

84,120

24.06 (4.31)

63,660

24.09 (4.30)

68,126^a

25.90 (3.35)

45,636^a

25.92 (3.32)

Alcohol consumption

 Total

80,763

-

61,752

-

64,639

-

43,267

-

 Never

5923

7.33%

4362

7.06%

1475

2.28%

845

1.95%

 Less than once a month

24,164

29.92%

18,379

29.76%

11,414

17.66%

7404

17.11%

 1–3 times a month

28,824

35.69%

22,187

35.93%

23,569

36.46%

15,900

36.75%

 Once per week

14,400

17.83%

11,085

17.95%

15,949

24.67%

10,876

25.14%

 2–3 times per week

6550

8.11%

5037

8.16%

10,355

16.02%

7043

16.28%

 4–5 times per week

738

0.91%

575

0.93%

1512

2.34%

1001

2.31%

 6–7 times per week

164

0.20%

127

0.21%

365

0.56%

198

0.46%

Binge drinking

 Total

79,863

-

61,136

-

31,258

-

21,145

-

 Never

27,022

33.84%

20,483

33.50%

3357

10.74%

2130

10.07%

 Less than once a month

31,478

39.42%

24,188

39.56%

13,175

42.15%

9039

42.75%

 1–3 times a month

16,417

20.56%

12,723

20.81%

10,127

32.40%

6842

32.36%

 Once a week

4318

5.41%

3292

5.38%

3875

12.40%

2661

12.58%

 Several times per week

628

0.79%

450

0.74%

725

2.32%

473

2.24%

Smoking initiation

 Total

83,962

-

63,533

-

66,288

-

44,203

-

 Never smokers

41,878

49.88%

31,439

49.48%

31,396

47.36%

21,276

48.13%

 Ever smokers

42,084

50.12%

32,094

50.52%

34,892

52.64%

22,927

51.87%

Smoking heaviness (cigarettes per day)

16,431

11.37 (5.93)

12,617

11.38 (5.90)

12,727

13.42 (6.37)

8273

13.39 (6.18)

Caffeine consumption (mg per day)

76,310

141.17 (138.33)

57,913

141.57 (138.45)

29,998

125.32 (85.22)

20,254

125.52 (84.50)

Age at first birth (years)

94,643

27.15 (4.65)

71,005

27.19 (4.61)

74,599

29.61 (4.99)

50,084

29.65 (4.91)

Number of children (N children)

94,643

2.55 (0.95)

71,005

2.54 (0.93)

74,599

2.51 (0.91)

50,084

2.50 (0.88)

Time to conception (months)

65,828

4.86 (7.87)

50,344

4.88 (7.93)

54,889^b

4.82 (7.77)

37,298^b

4.81 (7.70)

Infertility treatment

 Total

84,850

-

64,236

-

-

-

-

-

 Never

77,098

90.86%

58,302

90.76%

-

-

-

-

 Ever

7752

9.14%

5934

9.24%

-

-

-

-

Miscarriage

 Total

58,206

-

44,267

-

-

-

-

-

 Never

41,214

70.81%

31,333

70.78%

-

-

-

-

 Ever

16,992

29.19%

12,934

29.22%

-

-

-

-