VMI

## # A tibble: 3 × 2
##   VMI_ever     n
##      <dbl> <int>
## 1        0   211
## 2        1    32
## 3      999     8
## # A tibble: 1 × 7
##       n  mean    sd median   IQR   min   max
##   <int> <dbl> <dbl>  <dbl> <dbl> <dbl> <dbl>
## 1    32  51.2  11.8     45  9.25    44    83

## [1] 13
## [1] 6

DCDQ

## # A tibble: 1 × 2
##   DCDQ_coorddisorder     n
##                <dbl> <int>
## 1                  1    75
## [1] 117
## [1] 0
## # A tibble: 1 × 7
##       n  mean    sd median   IQR   min   max
##   <int> <dbl> <dbl>  <dbl> <dbl> <dbl> <dbl>
## 1   165  22.5  6.73     21    10    15    42

Milestone Basics

## # A tibble: 7 × 6
##   milestone                      no   yes  `NA` `% yes` avg_age_no
##   <chr>                       <int> <int> <int>   <dbl>      <dbl>
## 1 acq_yn_crawling                22   151    78    87.3      10.1 
## 2 acq_yn_pull to stand            7    88   156    92.6       9.10
## 3 acq_yn_reach                    2   168    81    98.8      11.9 
## 4 acq_yn_rolling                  4   168    79    97.7      10.4 
## 5 acq_yn_sitting alone            6   168    77    96.6       7.50
## 6 acq_yn_sitting with support     4    91   156    95.8       8.01
## 7 acq_yn_walk alone              16   206    29    92.8       7.28
## # A tibble: 6 × 6
##   skill                n_yes mean_age sd_age min_age max_age
##   <chr>                <int>    <dbl>  <dbl>   <dbl>   <dbl>
## 1 crawling               151    11.9    6.38       4      60
## 2 pull to stand           88    17.3    9.72       7      66
## 3 rolling                168     7.51   5.70       1      37
## 4 sitting alone          168    10.7    6.51       4      54
## 5 sitting with support    91     8.71   5.27       0      36
## 6 walk alone             206    20.9   11.8        9      84

Milestones and IQ