Skip to main content

Table 1 Characteristics of married Millennium Cohort Study participants for overall sample and by referral choice

From: Engaging military couples in marital research: does requesting referrals from service members to recruit their spouses introduce sample bias?

Service member characteristics

Overall

Referring

N = 25,017

n = 8209

n a

(%)b

n a

(%)c

Demographics

 Sex

  Male

19,272

(86.1)

6626

(34.1)

  Female

5745

(13.9)

1583

(26.8)

 Age (years)

  17–24

7207

(32.9)

2241

(32.3)

  25–34

15,448

(60.4)

5153

(33.4)

  35–44

2082

(6.2)

710

(33.6)

  > 44

280

(0.6)

105

(37.4)

 Race/ethnicity

  White, non-Hispanic

18,540

(69.1)

6393

(35.3)

  Black, non-Hispanic

2202

(12.3)

562

(26.1)

  Hispanic

2290

(11.0)

655

(28.6)

  Other

1985

(7.7)

599

(30.5)

 Education

  Less than bachelor’s

18,250

(81.5)

5760

(32.4)

  Bachelor’s or higher

6767

(18.5)

2449

(36.0)

 Number of children

  0

10,890

(43.6)

3210

(29.7)

  1

6966

(27.9)

2314

(33.8)

  2

4605

(18.4)

1648

(35.8)

  3 or more

2556

(10.1)

1037

(40.8)

 Financial problems

  Not bothered

14,390

(54.0)

4185

(29.2)

  Bothered a little or a lot

10,353

(46.0)

3969

(37.9)

Military characteristics

 Deployment status

  Nondeployed

8938

(32.5)

2865

(31.9)

  Deployed without combat

3362

(12.7)

891

(26.5)

  Deployed with combat

12,594

(54.8)

4443

(35.6)

 Service branch

  Air Force

7770

(19.0)

2088

(25.4)

  Army

10,976

(49.3)

3976

(35.8)

  Marine Corps

2181

(14.6)

744

(33.3)

  Navy/Coast Guard

4090

(17.2)

1401

(33.5)

 Component

  Active duty

19,863

(80.3)

6305

(32.1)

  Reserve/National Guard

5154

(19.8)

1904

(37.1)

 Pay grade

  Enlisted

20,434

(90.6)

6550

(32.7)

  Officer

4583

(9.4)

1659

(36.3)

Individual health and adjustment

 Mental component score

  Lowest 15th percentile

3578

(16.8)

1375

(37.9)

  Middle 70th percentile

16,698

(69.2)

5597

(33.7)

  Highest 15th percentile

3578

(14.0)

1109

(32.6)

 Physical component score

  Lowest 15th percentile

3578

(16.5)

1325

(37.4)

  Middle 70th percentile

16,700

(69.5)

5631

(34.1)

  Highest 15th percentile

3576

(14.0)

1125

(31.4)

Posttraumatic growth index score, mean (SE)

40.39

(0.08)

40.12

(0.13)

 Difficulties with significant other

  Not bothered

16,383

(63.4)

5070

(31.2)

  Bothered a little or a lot

8366

(36.6)

3082

(36.8)

 Caring for others

  Not bothered

17,188

(68.3)

5210

(30.5)

  Bothered a little or a lot

7542

(31.7)

2933

(39.0)

 No one to turn to

  Not bothered

20,145

(79.7)

6429

(32.2)

  Bothered a little or a lot

4530

(20.4)

1713

(37.6)

  1. Abbreviation: SE Standard error
  2. aFrequencies are unweighted and may not sum to the total population presented because of missing data
  3. bColumn percentages and means are weighted and normalized to the study sample
  4. cRow percentages and means are weighted and normalized to the study sample