Table 1.

Characteristics of 1055 pregnant women by prenatal use of NSAIDs or aspirin. Values are numbers (percentages)

Characteristic	Users (n=75**)	Non-users (n=980)
Age (years):
<20	1 (1)	33 (3)
20-24	7 (9)	114 (12)
25-29	19 (25)	273 (28)
30-34	31 (41)	321 (33)
≥35	17 (23)	239 (24)
Race:
White	40 (54)	361 (37)
Black	4 (5)	72 (7)
Hispanic	16 (22)	204 (21)
Asian or Pacific Islander	8 (11)	286 (29)
Other	6 (8)	51 (5)
Highest educational level:
Below college	32 (43)	552 (56)
College degree	30 (41)	275 (28)
Graduate school	12 (16)	151 (15)
Smoked since last menstruation:
Yes	9 (12)	97 (10)
No	66 (88)	883 (90)
Coffee intake since last menstruation (cups/day):
0	42 (56)	679 (69)
0.1-1	28 (37)	249 (25)
>1	5 (7)	52 (5)
Alcohol use since last menstruation:
Yes	53 (71)	382 (39)
No	22 (29)	598 (61)
Jacuzzi use:
Yes	12 (16)	92 (9)
No	62 (84)	884 (91)
Drug use since last menstruation:
Yes	4 (5)	55 (6)
No	71 (95)	925 (94)
Multivitamin use:
Yes	59 (79)	712 (73)
No	16 (21)	268 (27)
Fever since last menstruation:
Yes	4 (5)	54 (6)
No	71 (95)	917 (94)
No of previous miscarriages:
0	59 (79)	778 (79)
1	9 (12)	155 (16)
≥2	7 (9)	47 (5)
No of previous pregnancies:
0	24 (32)	261 (27)
1	17 (23)	294 (30)
2	9 (12)	179 (18)
≥3	25 (33)	246 (25)
History of diabetes:
Yes	0	26 (3)
No	75 (100)	953 (97)
History of hypertension:
Yes	4 (5)	74 (8)
No	71 (95)	904 (92)

^*The number in individual categories may not match the total number owing to missing data.

^**53 NSAID users and 22 aspirin users.