Table 1 Distribution of socio-economic and demographic characteristics of Canadian girls by age at menarche
From: Age at menarche in Canada: results from the National Longitudinal Survey of Children & Youth
Age at menarche | |||||
|---|---|---|---|---|---|
Sample size N* | Early N*(%)† | Average N*(%)† | Late N*(%)† | P Value | |
Socio-economic Variables | |||||
Household income | 0.018 | ||||
Lowest & lower middle | 88 | 19 (21.2) | 67 (76.0) | 2 (2.8) | |
Middle | 347 | 73 (21.1) | 214 (61.7) | 59 (17.1) | |
Upper middle | 475 | 62 (13.1) | 333 (70.0) | 80 (16.9) | |
Highest | 487 | 50 (10.3) | 336 (68.9) | 101 (20.8) | |
PMK Education | 0.495 | ||||
Less than Secondary | 167 | 34 (20.1) | 94 (56.5) | 39 (23.4) | |
Secondary school graduation | 340 | 46 (13.4) | 236 (69.3) | 59 (17.3) | |
Beyond high school | 311 | 38 (12.1) | 226 (72.5) | 48 (15.4) | |
College or university degree (including trade) | 558 | 78 (14.0) | 382 (68.4) | 98 (17.6) | |
Place of residence | 0.685 | ||||
Rural area | 195 | 27 (13.9) | 140 (71.8) | 28 (14.2) | |
Urban, population ≤499,999 | 668 | 89 (13.3) | 462 (69.2) | 117 (17.5) | |
Urban, population ≥ 500,000 | 540 | 89 (16.5) | 352 (65.2) | 99 (18.3) | |
PMK working status in the past 12 months | 0.098 | ||||
No | 203 | 47 (23.2) | 121 (59.7) | 35 (17.2) | |
Yes | 1174 | 151 (12.9) | 814 (69.3) | 209 (17.8) | |
Demographic Variables | |||||
Province | 0.013 | ||||
Newfoundland & Labrador | 31 | 5 (14.4) | 23 (74.1) | 4 (11.5) | |
Prince Edward Island | 8 | 2 (24.5) | 4 (56.8) | 1 (18.7) | |
Nova Scotia | 43 | 7 (17.1) | 30 (69.5) | 6 (13.4) | |
New Brunswick | 34 | 11 (30.7) | 19 (54.9) | 5 (14.4) | |
Quebec | 324 | 72 (22.3) | 206 (63.6) | 46 (14.1) | |
Ontario | 561 | 61 (10.9) | 379 (67.5) | 121 (21.6) | |
Manitoba | 52 | 8 (14.4) | 34 (65.8) | 10 (19.8) | |
Saskatchewan | 48 | 8 (17.5) | 33 (68.1) | 7 (14.4) | |
Alberta | 116 | 16 (13.9) | 89 (77.3) | 10 (8.8) | |
British Columbia | 185 | 16 (8.4) | 136 (73.5) | 33 (18.1) | |
PMK Immigration status | 0.634 | ||||
No | 1159 | 155 (13.4) | 796 (68.7) | 207 (17.9) | |
Yes | 210 | 38 (17.9) | 136 (64.8) | 36 (17.3) | |
Place of birth | 0.063 | ||||
Others | 60 | 23 (38.3) | 18 (29.8) | 19 (31.9) | |
Canada | 1325 | 172 (13.0) | 929 (70.1) | 224 (16.9) | |
Ethnicity | 0.079 | ||||
Non-white | 111 | 31 (27.7) | 71 (64.1) | 9 (8.2) | |
White | 1241 | 168 (13.5) | 850 (68.5) | 223 (18.0) | |
Language first learnt at home | 0.164 | ||||
French and/or English | 1307 | 169 (12.9) | 906 (69.3) | 233 (17.8) | |
Other | 70 | 23 (32.1) | 37 (52.3) | 11 (15.6) | |
Living with both parents | 0.020 | ||||
No | 331 | 74 (22.5) | 217 (65.6) | 39 (11.9) | |
Yes | 1072 | 131 (12.2) | 737 (68.7) | 204 (19.1) | |