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. 2020 Oct 28;15(10):e0239914. doi: 10.1371/journal.pone.0239914

Table 4. Boys’ attitudes toward periods and period-related teasing based on menstrual knowledge, home environment, and friends’ period teasing.

Reported period-teasing Negative attitudes
Have teased girls about periods bin(0/1) Appropriate if girls publicly discuss periods bin(0/1) Periods should be hidden in school bin(0/1)
(1) (2) (3) (4) (5) (6)
Mean: 0.184 0.184 0.184 0.184 0.206 0.531
Menstrual knowledge score index
continuous [0, 1]
0.0152 -0.0975 0.0387 0.0438 -0.00429 0.160
(0.13) (-0.86) (0.33) (0.38) (-0.03) (0.97)
Home restricts menstruating women
binary (0/1)
0.0974** 0.100** 0.0979** 0.0459 -0.00543
(2.25) (2.38) (2.31) (0.98) (-0.09)
Number of home activities restricted during menstruation
count [0, 6]
0.0502*** 0.0463**
(2.45)
Report any male friends have teased
binary (0/1)
0.212*** -0.0156 0.00144
(3.10) (-0.26) (0.02)
Number of male friends who have teased
count [0, 5]
0.0985***
(3.35)
Observations 314 353 310 314 328 325

Note: All columns report OLS coefficients. t statistics in parentheses.

* p < 0.10,

** p < 0.05,

*** p < 0.01.

Robust standard errors (Huber-White estimators). Dependent variables: The outcome in columns 1-4 is a binary variable that equals 1 if a boy reports that he has ever teased girls about periods. Outcome in column 5 is a binary indicator equalling 1 if a boy agrees that is appropriate/very appropriate for girls to discuss periods. Column 6 is a binary indicator equalling 1 if a boy agrees that periods are something to be hidden in school. Controls (not reported) are age and grade. School fixed effects included.