Variable Level Percentage Mean  ±  SD T-test P-value
School Government 156(53.8%) 14.71 ± 1.36 6.19 0
Private 134(46.2%) 13.72 ± 1.31
Meat eating habit  Yes 170(58.6%) 14.31  ± 1.40 0.86 0.39
No 120(41.4%) 14.16  ± 1.46
vegetable eating habit Yes 123(42.4%) 13.98 ± 1.49 -2.57 0.01
No 167(57.6%) 14.43 ± 1.34
Eat snacks Yes 273(94.1%) 14.26  ± 1.43 0.7 0.48
No 17(5.9%) 14.00  ± 1.31
Age in year 14-Oct 35(12.0%) 13.71 ±  1.29 -2.37 0.02
15-19 243(88.0%) 14.32 ± 1.43
House Ownership status Owned 202(69.7%) 14.12 ± 1.37 -2.42 0.01
Rented 76(30.3%) 14.58 ± 1.50
Table 3:Mean age at menarche difference among High-School Female Students in Mekelle city February, 2013.