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. Author manuscript; available in PMC: 2019 Jul 31.
Published in final edited form as: Perspect Sex Reprod Health. 2017 Mar 2;49(1):55–67. doi: 10.1363/psrh.12020

Table 5.

Bivariate associations between sociodemographic predictors and sexual initiation latent class membership, by biological sex


FEMALES (n=1,628)

Typical Debut
% (n)
Dual Behavior Debut
% (n)
Early Debut
% (n)
Delayed Debut with Oral Sex
% (n)

Class Size 41.4 (655) 34.8 (564) 17.4 (293) 6.4 (116)

Race/Ethnicity ***
    Hispanic 12.3 (111) 10.2 (75) 14.1 (40) 9.8 (18)
    NH-Black 11.1 (119) bc 5.2 (65) acd 22.8 (110) ab 18.7 (35) b
    NH-Asian 4.0 (37) 3.4 (37) c 1.3 (8) b 5.2 (5)
    NH-White 72.5 (388) bc 81.2 (387) acd 61.8 (135) ab 66.4 (58) b
Wave IV Age
    24–26 26.0 (138) 25.6 (113) 22.6 (52) 23.0 (25)
    27–29 53.7 (360) 55.6 (309) 51.7 (164) 49.8 (57)
    30–34 20.4 (157) 18.8 (142) 25.8 (77) 27.2 (32)
Parental Education Level***
    < High School 14.1 (81) b 6.6 (46) a 12.2 (40) 12.1 (19)
    HS diploma/GED 27.9 (165) 22.5 (122) c 31.5 (82) b 25.1 (31)
    Some college 28.2 (185) d 34.1 (179) d 34.8 (94) d 18.8 (25) abc
    ≥Bachelor’s Degree 29.8 (224) bcd 36.7 (217) ac 21.5 (77) abd 44.0 (41) ac
Neighborhood Poverty*
    Low 58.3 (404) 59.0 (340) c 49.4 (141) b 57.2 (58)
    Medium 19.5 (126) b 25.8 (142) a 21.5 (70) 24.5 (29)
    High 22.3 (125) b 15.3 (82) ac 29.1 (82) b 18.3 (29)
Religiosity In Adolescence
    Public * 2.52 (0.13) d 2.43 (0.13) d 2.38 (0.17) d 3.40 (0.30) abc
    Private ** 4.20 (0.15) d 4.27 (0.15) d 4.55 (0.20) d 5.38 (0.24) abc
Sexual Victimization Prior to Debut
    Coerced Encounter 13.2 (84) 15.8 (74) 21.0 (54) 11.9 (12)
    Physically Forced 8.7 (59) 9.6 (46) 13.7 (36) 8.8 (10)
    Sexual Abuse 9.7 (56) 10.9 (62) 15.0 (43) 9.3 (13)
    Any * 21.2 (138) c 23.5 (125) c 32.4 (85) abd 23.8 (371) c

MALES (n=526)

Single Behavior Debut
% (n)
Multi Behavior Debut
% (n)
Early Anal Sex
% (n)
Very Early Debut
% (n)

Class size 50.4 (273) 32.3 (169) 11.2 (52) 6.2 (32)

Race/Ethnicity
    Hispanic 13.5 (49) 14.0 (29) 27.9 (20) 17.9 (6)
    NH-Black 13.5 (47) 9.7 (24) 12.5 (8) 8.9 (6)
    NH-Asian 1.7 (14) 4.6 (15) 4.0 0.2
    NH-White 71.3 (163) 71.6 (101) 55.6 (23) 73.0 (19)
Wave IV Age
    24–26 18.9 (36) 16.0 (22) 4.5 (4) 9.1 (3)
    27–29 46.3 (142) 48.9 (93) 68.4 (29) 51.2 (18)
    30–34 34.7 (95) 35.1 (54) 27.1 (19) 39.4 (11)
Parental Education Level
    < High School 13.5 (35) 9.7 (17) 16.9 (8) 12.8 (3)
    HS diploma/GED 24.9 (69) 14.9 (26) 23.9 (12) 37.5 (12)
    Some college 24.2 (68) 30.4 (52) 25.6 (15) 30.3 (8)
    ≥Bachelor’s Degree 37.4 (101) 45.0 (74) 33.7 (17) 19.3 (9)
Neighborhood Poverty
    Low 59.2 (158) 62.7 (106) 44.6 (25) 47.7 (16)
    Medium 19.2 (59) 18.1 (32) 22.2 (13) 20.3 (7)
    High 21.6 (56) 19.2 (31) 33.2 (14) 32.0 (10)
Religiosity In Adolescence
    Public 2.69 (0.21) d 2.45 (0.26) 2.74 (0.41) 1.81 (0.38) a
    Private 4.30 (0.22) 4.08 (0.25) 3.79 (0.50) 3.59 (0.69)
Sexual Victimization Prior to Debut
    Coerced Encounter*** 6.1 (14) 1.8 (7) c 17.1 96) b 14.2 (4)
    Physically Forced * 5.6 (12) 1.3 (3) c 12.6 (5) b 13.1 (3)
    Sexual Abuse ** 8.3 (20) bd 2.0 (5) ac 19.5 (7) bd 1.0 (4) ac
    Any ** 13.7 (32) b 4.8 (14) ac 30.0 (11) b 19.6 (8)

All column percentages weighted to reflect Add Health complex sampling design; all N’s are unweighted counts. Percentages may not add to 100% due to rounding and/or weighting.

Stars next to variable names indicate chi2-test [categorical variables]/F-tests [continuous variables] of significant difference in predictor distribution across class membership;

*

p<.05;

**

p<.01;

***

p<.001,;

ł

p<.10

Letter superscripts indicate if proportion in a given class is significantly different (p<.10) from other classes:

a

indicates significantly different than “Typical Debut” for females / “Single Behavior Debut” for males

b

indicates significantly different from “Dual Behavior Debut” for females / “Multi Behavior Debut” for males

c

indicates significantly different from “Early Debut” for females / “Early Anal Sex” for males

d

indicates significantly different from “Delayed Debut with Oral Sex” for females / “Very Early Debut” for males