Table:
Characteristics	Females [n (%)]	Males [n (%)]
Age (years) at baselinea*	30.0 ± 4.1	31.8 ± 4.9
BMI at baseline*
Under/healthy (BMI < 25)	229 (46)	84 (17)
Overweight (25 ≤ BMI < 30)	136 (27)	206 (42)
Obese (30 ≤ BMI < 35)	66 (13)	131 (26)
Morbidly obese (BMI ≥ 35)	69 (14)	75 (15)
Missing values	1 (< 1)	5 (< 1)
Mean ± SD*	27.6 ± 7.3	29.8 ± 5.6
Race/Ethnicity
Non-Hispanic white	393 (79)	394 (79)
Non-Hispanic black	24 (5)	23 (5)
Hispanic	50 (10)	45 (9)
Other	31 (6)	36 (7)
Missing values	3 (< 1)	3 (< 1)
Household income
< $70,000	157 (32)	163 (33)
≥ $70,000	334 (68)	328 (67)
Missing values	10 (2)	10 (2)
Parity conditional on gravidity
No prior pregnancy	210 (42)	215 (43)
Prior pregnancy
Without live birth(s)	53 (11)	44 (9)
With live birth(s)	235 (47)	239 (48)
Missing values	3 (< 1)	3 (< 1)
Active smoking status*
Yes (serum cotinine ≥ 10 ng/mL)	58 (12)	106 (22)
No (serum cotinine < 10 ng/mL)	431 (88)	387 (79)
Missing values	12 (2)	9 (2)
BMI, body mass index (kg/m2). aMean ± SD. *p < 0.05 from independent t-test for continuous characteristics or chi-square test for categorical characteristics.

Parse the following content of the photo in markdown code: | Characteristics | Females [n (%)] | Males [n (%)] | 
 | --- | --- | --- | 
 | Age (years) at baselinea* | 30.0 ± 4.1 | 31.8 ± 4.9 | 
 | BMI at baseline* | 
 | Under/healthy (BMI < 25) | 229 (46) | 84 (17) | 
 | Overweight (25 ≤ BMI < 30) | 136 (27) | 206 (42) | 
 | Obese (30 ≤ BMI < 35) | 66 (13) | 131 (26) | 
 | Morbidly obese (BMI ≥ 35) | 69 (14) | 75 (15) | 
 | Missing values | 1 (< 1) | 5 (< 1) | 
 | Mean ± SD* | 27.6 ± 7.3 | 29.8 ± 5.6 | 
 | Race/Ethnicity | 
 | Non-Hispanic white | 393 (79) | 394 (79) | 
 | Non-Hispanic black | 24 (5) | 23 (5) | 
 | Hispanic | 50 (10) | 45 (9) | 
 | Other | 31 (6) | 36 (7) | 
 | Missing values | 3 (< 1) | 3 (< 1) | 
 | Household income | 
 | < $70,000 | 157 (32) | 163 (33) | 
 | ≥ $70,000 | 334 (68) | 328 (67) | 
 | Missing values | 10 (2) | 10 (2) | 
 | Parity conditional on gravidity | 
 | No prior pregnancy | 210 (42) |

215 (43) | 
 | Prior pregnancy | 
 | Without live birth(s) | 53 (11) | 44 (9) | 
 | With live birth(s) | 235 (47) | 239 (48) | 
 | Missing values | 3 (< 1) | 3 (< 1) | 
 | Active smoking status* | 
 | Yes (serum cotinine ≥ 10 ng/mL) | 58 (12) | 106 (22) | 
 | No (serum cotinine < 10 ng/mL) | 431 (88) | 387 (79) | 
 | Missing values | 12 (2) | 9 (2) | 
 | <COLSPAN=3> BMI, body mass index (kg/m2). aMean ± SD. *p < 0.05 from independent t-test for continuous characteristics or chi-square test for categorical characteristics. |