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. Author manuscript; available in PMC: 2013 May 7.
Published in final edited form as: Arch Pediatr Adolesc Med. 2009 Mar;163(3):218–224. doi: 10.1001/archpediatrics.2008.550

Table 1. Sample Characteristics by Parental Support for Rating Modificationsa.

%
Predictor Sample
(N=2401),
No. (%)
Ratings Should
Also Be Based on
Cigarette Smoking
(n=1242)
Ratings Should
Also Be Based
on Alcohol Use
(n=1579)
R Rating for
Cigarette Smoking
(n=693)
R Rating for
Alcohol Use
(n=1003)
Parent characteristic assessed at baseline
 Age, y
  20-29 109 (4.5) 4.0b 4.7b 4.5 4.2
  30-39 1149 (48.0) 46.3 45.3 47.2 48.2
  40-49 1032 (43.1) 44.3 45.1 43.0 43.0
  ≥50 106 (4.4) 5.2 4.7 5.3 4.7
 Education
  High school or less 754 (31.6) 30.5b 30.1 36.9c 35.1c
  Some college or associate’s degree 930 (39.0) 37.4 38.7 38.7 39.5
  Bachelor’s or graduate degree 703 (29.5) 31.8 30.3 24.0 25.1
 Household income, $
  <25 000 257 (10.9) 10.5 10.6 14.0c 14.0c
  25 000 to 40 000 560 (23.7) 23.2 23.8 26.6 26.1
  40 001 to 65 000 711 (30.1) 30.4 30.0 28.3 28.9
  >65 000 837 (35.4) 34.3 34.2 29.7 29.8
 Race/ethnicity
  White 2175 (90.6) 90.2 90.8 88.7b 88.7b
  Other 226 (9.4) 9.8 9.2 11.3 11.3
Parent characteristic assessed at wave 2
 Relationship to child
  Mother/stepmother/foster 2279 (94.9) 95.3 95.9b 94.2 94.9
  Father 96 (4.0) 3.5 3.1 4.2 3.6
  Other 26 (1.1) 1.1 1.0 1.6 1.5
 Smoking status
  Neither smoke 1592 (66.4) 69.7c 68.6b 67.0 63.8
  One smokes 509 (21.2) 20.0 20.4 21.4 22.4
  Both smoke 298 (12.4) 10.2 11.0 11.7 13.8
 Alcohol use
  Neither drinks 310 (13.1) 14.3b 13.3b 17.2c 16.8c
  One or both drink occasionally 1255 (53.1) 53.1 53.8 55.4 55.4
  One or both drink weekly or more 799 (33.8) 31.2 31.5 25.8 26.3
 Parental restriction of R-rated movies
  Complete 852 (35.5) 40.8c 39.5c 35.9 35.1
  Partial 1416 (59.0) 55.6 56.0 59.5 60.0
  None 131 (5.5) 3.6 4.4 4.5 4.9
 Believes MPAA ratings are
  Useful 1408 (58.8) 55.2c 54.7c 51.1c 53.4c
  Not useful 987 (41.2) 44.8 45.2 48.8 46.5
Child characteristic
 Child lives with participating parent
  All the time 2062 (86.0) 86.8 86.6 88.3 86.3
  Sometimes stays with another
  parent/relative
335 (14.0) 13.0 13.2 11.7 13.7
 Sex
  M 1201 (50.0) 48.6 48.4b 46.9 49.4
  F 1200 (50.0) 51.4 51.6 53.1 50.6
 Age at wave 2, y
  9-10 464 (19.3) 20.0 19.4 18.6 18.3
  11 886 (36.9) 35.7 37.0 35.9 36.9
  12 773 (32.2) 33.2 32.0 33.3 32.6
  13-15 278 (11.6) 11.2 11.6 12.1 12.2

Abbreviation: MPAA, Motion Picture Association of America.

a

Number of subjects with missing data for parental attitudes and predictors: ratings also based on cigarette smoking (6); ratings also based on alcohol use (7): R rating for cigarette smoking (5); R rating for alcohol use (7); parent age (5); parent education (14); household income (36); parental smoking status (2); parental alcohol use (37); parental restriction of R-rated movies (2); parental beliefs of rating usefulness (6); and child primary residence (4).

b

Overall χ2 P value <.05.

c

Overall χ2 P value <.001.