≤ 11
|
90
|
400
|
1.00
|
188
|
1.00
|
92
|
1.00
|
1.00
|
12
|
109
|
532
|
1.13 (0.83–1.55)
|
278
|
1.24 (0.88–1.75)
|
119
|
1.18 (0.79–1.77)
|
1.04 (0.74–1.47)
|
13
|
121
|
475
|
0.88 (0.65–1.21)
|
231
|
0.87 (0.62–1.24)
|
110
|
0.94 (0.62–1.41)
|
0.93 (0.65–1.33)
|
≥ 14
|
120
|
318
|
0.61 (0.44–0.85)
|
157
|
0.60 (0.42–0.86)
|
64
|
0.59 (0.38–0.92)
|
1.02 (0.67–1.53)
|
Trend p value
| | |
0.0007
| |
0.0006
| |
0.008
|
0.85
|
Number of full-term pregnanciesa
|
None
|
125
|
564
|
1.00
|
301
|
1.00
|
113
|
1.00
|
1.00
|
1
|
85
|
347
|
0.91 (0.66–1.25)
|
157
|
0.77 (0.55–1.10)
|
82
|
1.06 (0.70–1.62)
|
0.70 (0.49–1.02)
|
2
|
139
|
492
|
0.81 (0.61–1.07)
|
251
|
0.77 (0.57–1.06)
|
106
|
0.95 (0.64–1.39)
|
0.84 (0.60–1.18)
|
3
|
56
|
224
|
0.81 (0.56–1.18)
|
100
|
0.69 (0.45–1.04)
|
54
|
1.06 (0.65–1.73)
|
0.68 (0.44–1.05)
|
≥ 4
|
35
|
98
|
0.49 (0.31–0.78)
|
45
|
0.47 (0.28–0.80)
|
30
|
0.72 (0.39–1.33)
|
0.65 (0.37–1.15)
|
Trend p value
| | |
0.008
| |
0.005
| |
0.50
|
0.09
|
Age at first full-term pregnancy for parous women, yearsa,b
|
<22
|
68
|
316
|
1.00
|
126
|
1.00
|
96
|
1.00
|
1.00
|
22–27
|
89
|
333
|
1.07 (0.72–1.58)
|
149
|
1.14 (0.73–1.78)
|
81
|
0.92 (0.56–1.50)
|
1.25 (0.81–1.94)
|
28–31
|
78
|
265
|
1.03 (0.66–1.60)
|
134
|
1.17 (0.71–1.93)
|
57
|
0.82 (0.46–1.45)
|
1.42 (0.85–2.37)
|
≥ 32
|
80
|
247
|
0.92 (0.57–1.48)
|
144
|
1.23 (0.72–2.10)
|
38
|
0.56 (0.30–1.07)
|
2.22 (1.24–3.98)
|
Trend p value
| | |
0.65
| |
0.49
| |
0.08
|
0.009
|
Duration of breastfeeding for parous women, monthsa,b
|
0
|
38
|
247
|
1.00
|
102
|
1.00
|
63
|
1.00
|
1.00
|
<1
|
23
|
144
|
0.99 (0.56–1.77)
|
65
|
1.01 (0.53–1.90)
|
38
|
1.19 (0.59–2.39)
|
0.82 (0.47–1.44)
|
1–6
|
80
|
273
|
0.58 (0.37–0.91)
|
131
|
0.57 (0.34–0.94)
|
68
|
0.72 (0.41–1.27)
|
0.77 (0.47–1.26)
|
7–23
|
110
|
322
|
0.52 (0.33–0.82)
|
165
|
0.52 (0.31–0.87)
|
63
|
0.55 (0.31–0.98)
|
0.97 (0.59–1.61)
|
≥ 24
|
64
|
175
|
0.51 (0.30–0.86)
|
90
|
0.49 (0.27–0.87)
|
40
|
0.62 (0.32–1.21)
|
0.77 (0.42–1.39)
|
Trend p value
| | |
0.001
| |
0.002
| |
0.03
|
0.63
|
BMI 1 year before reference date, kg/m2
|
<25
|
257
|
939
|
1.00
|
495
|
1.00
|
183
|
1.00
|
1.00
|
25–29
|
95
|
425
|
1.18 (0.89–1.55)
|
209
|
1.11 (0.82–1.50)
|
101
|
1.41 (0.99–2.02)
|
0.81 (0.59–1.10)
|
30–34
|
51
|
221
|
1.01 (0.70–1.44)
|
94
|
0.88 (0.59–1.30)
|
61
|
1.43 (0.91–2.23)
|
0.60 (0.40–0.89)
|
≥ 35
|
37
|
140
|
0.88 (0.58–1.34)
|
56
|
0.69 (0.43–1.11)
|
40
|
1.18 (0.70–2.01)
|
0.61 (0.38–0.99)
|
Trend p value
| | |
0.82
| |
0.20
| |
0.16
|
0.005
|
Duration of COC use, years
|
Never
|
47
|
244
|
1.00
|
128
|
1.00
|
47
|
1.00
|
1.00
|
<1
|
73
|
295
|
0.78 (0.51–1.18)
|
133
|
0.70 (0.44–1.12)
|
59
|
0.76 (0.43–1.33)
|
0.93 (0.57–1.52)
|
1–4
|
108
|
429
|
0.80 (0.54–1.19)
|
227
|
0.81 (0.53–1.25)
|
90
|
0.87 (0.52–1.46)
|
0.92 (0.59–1.43)
|
5–9
|
115
|
362
|
0.62 (0.42–0.93)
|
173
|
0.57 (0.37–0.88)
|
90
|
0.82 (0.49–1.37)
|
0.71 (0.45–1.12)
|
≥ 10
|
97
|
395
|
0.84 (0.56–1.26)
|
193
|
0.76 (0.49–1.18)
|
99
|
1.27 (0.75–2.14)
|
0.61 (0.39–0.96)
|
Trend p value
| | |
0.30
| |
0.16
| |
0.18
|
0.008
|
Alcohol drinking status during reference agec
|
Never
|
141
|
558
|
1.00
|
251
|
1.00
|
138
|
1.00
|
1.00
|
Former
|
90
|
328
|
0.96 (0.71–1.31)
|
162
|
1.02 (0.72–1.44)
|
74
|
0.88 (0.59–1.33)
|
1.14 (0.79–1.64)
|
Current
|
209
|
839
|
1.05 (0.81–1.36)
|
441
|
1.17 (0.88–1.55)
|
173
|
0.93 (0.67–1.30)
|
1.25 (0.93–1.68)
|
Average number of alcoholic drinks per week in recent 5 years
|
Never
|
141
|
558
|
1.00
|
251
|
1.00
|
138
|
1.00
|
1.00
|
<3
|
130
|
481
|
1.01 (0.76–1.35)
|
248
|
1.11 (0.81–1.53)
|
101
|
0.89 (0.61–1.30)
|
1.22 (0.87–1.71)
|
3–5
|
49
|
171
|
0.93 (0.63–1.37)
|
90
|
1.01 (0.66–1.54)
|
34
|
0.76 (0.45–1.28)
|
1.31 (0.81–2.11)
|
6–11
|
32
|
157
|
1.16 (0.75–1.81)
|
82
|
1.26 (0.78–2.03)
|
34
|
1.06 (0.60–1.86)
|
1.20 (0.74–1.94)
|
> 12
|
17
|
127
|
1.77 (1.01–3.08)
|
68
|
2.10 (1.17–3.79)
|
27
|
1.71 (0.87–3.38)
|
1.24 (0.73–2.09)
|
Trend p value
| | |
0.12
| |
0.03
| |
0.42
|
0.23
|
Drinking alcohol but not in the recent five years
|
71
|
231
|
0.88 (0.63–1.22)
|
115
|
0.92 (0.63–1.34)
|
51
|
0.80 (0.51–1.26)
|
1.14 (0.76–1.73)
|